Ratio and Proportion Challenge

Math Challenge
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The ratios 13:18 and 104:144 are in proportion
The ratios 4:25 and 16:125 are in proportion
The ratios 18:6 and 36:18 are in proportion
The ratios 12:2 and 36:8 are in proportion
The ratios 5:17 and 40:136 are in proportion
The ratios 20:11 and 80:55 are in proportion
The ratios 6:3 and 42:21 are in proportion
The ratios 10:23 and 90:230 are in proportion
The ratios 10:25 and 90:225 are in proportion
The ratios 6:14 and 30:70 are in proportion
Ratio and proportion challenge is an online test to assess 5th or 6th grade student's math skills on finding if the given ratios are in proportion in pre-algebra or ratio and proportional relationships (RP) of common core state standards (CCSS) for mathematics.
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kuku
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