# Proportion Properties

## Two ratios set equal to each other.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Proportion Properties

by CK-12 //basic
Apply proportion properties.
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## Proportion Properties

This concept teaches students how to set up and solve proportions.
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## Proportion Properties

This concept teaches students how to set up and solve proportions.
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• PLIX

## Proportion Properties: Holiday Album Cover

Proportion Properties Interactive
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## Proportion Properties Principles

This video gives more detail about the mathematical principles presented in Proportion Properties.
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## Proportion Properties Examples

This video shows how to work step-by-step through one or more of the examples in Proportion Properties.
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## Proportions Principles - Basic

by CK-12 //basic
This video provides the student with a walkthrough on proportions.
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## Proportions Examples - Basic

by CK-12 //basic
This video provides the student with a walkthrough of one or more examples from the concept "Proportions".
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## Proportions

by CK-12 //basic
Defines a proportion and explains how to solve a proportion.
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## Applications of Proportions

by CK-12 //basic
Provides several problems that can be solved using proportions.
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## Solving for Unknown Values Using the Properties of Similar Triangles

by CK-12 //basic
Shows examples of determining unknown values using the properties of similar triangles.
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• Critical Thinking

## Proportion Properties Discussion Questions

A list of student-submitted discussion questions for Proportion Properties.
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• Real World Application

## There is Beauty in the Golden Ratio!

by Seymour Bernier //basic
The Golden Ratio is found everywhere throughout the natural world. Do you know that the more attractive you are depends on your proximity to the Golden Ratio?
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• Study Guide