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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

Identify proportions by cross multiplying or simplifying ratios.

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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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## Write and Solve Proportions by Using Cross-Products

Write proportions and then solve proportions by using cross-products

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• Practice
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## Proportions Using Cross Products

Learn new vocabulary words and help remember them by coming up with your own sentences with the new words using a Stop and Jot table.

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## Solve Proportions Using Cross Products Post Read

Develop understanding of concepts by studying them in a relational manner. Analyze and refine the concept by summarizing the main idea, creating visual aids, and generating questions and comments using a Four Square Concept Matrix.

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## Write and Solve Proportions by Using Cross-Products

Develop understanding of concepts by studying them in a relational manner. Analyze and refine the concept by summarizing the main idea, creating visual aids, and generating questions and comments using a Four Square Concept Matrix.

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• Real World Application

## A Golden Smile

Discover the math behind a beautiful smile.

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• Real World Application