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# Proportions

## Multiplication to solve for an unknown given two equal ratios.

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.
• Study Guide

## Proportions

by Kevin Cui //basic
Learn about proportions and how to solve them.
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• Flashcards

## Write and Solve Proportions by Using Equivalent Rates

by Ellaine Chou //basic
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## Proportions

by Kyle Bardman //basic