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# Proportions Using Cross Products

## Cross-multiply to solve proportions with one variable

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.

## Proportions Using Cross Products

Learn to identify proportional ratios by cross multiplying.
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## Proportions Using Cross Products

Learn to solve proportions by using cross multiplication and finding the value of the missing variable.
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## Write and Solve Proportions by Using Cross-Products

Learn to write and solve proportions by using cross- products and algebra.
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## Proportions Using Cross Products

Use cross products to solve proportions and find the value of the missing variable
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## Proportions Using Cross Products

Use cross products to solve proportions and find the value of the missing variable
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## Proportions Using Cross Products

Use cross products to solve proportions and find the value of the missing variable
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## Equivalent Ratios: Yes or No?

Identify proportions by cross multiplying or simplifying ratios.
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## Proportions: Find the Missing Value

Use cross products to solve proportions and find the value of the missing variable
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## Solving Proportions: Solving a Proportion Using the Cross Product Property

by SFDR Algebra I //at grade
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## Proportions Using Cross Product

Proportions Using Cross Products Interactive
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• Real World Application

## A Golden Smile

Discover the math behind a beautiful smile.
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• Real World Application

## Jellyfish Journeys

Find out how far one tiny Mediterranean jellyfish can swim in a day.
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