its math AND VERYYYY HARD
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1 Answer

If this is simple proportion:

y=12 x=15

y=21 x=?

21/12=x/15

7/4=x/15

x=15×7/4=105/4=26¼

Or, you can also do:

15/12=x/21, 5/4=x/21, x=5×21/4=105/4=26¼

by Top Rated User (600k points)

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