SOLUTION: Hat sizes are determined by measuring the circumference of one's head in either inches or centimeters. Use ration proportion to complete the following table. Hat Size 7 1/8 Whe

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Question 459806: Hat sizes are determined by measuring the circumference of one's head in either inches or centimeters. Use ration proportion to complete the following table.
Hat Size 7 1/8 When head circumference is 22 2/5" (to the nearest 1/5 inch) and or 57 (to the nearest cm).
Find the circumference to the nearest (1/5 inch) and centimeter if the hat size is 6 7/8

I am getting stuck. I think I can set this up right
6 7/8 (57)
_____________
7 1/8
and
6 7/8(22 2/5)
_______________
7 1/8
Please help!
Answer by solver91311(24713) (Show Source):
You can put this solution on YOUR website!

First, change everything to decimals. It will make your calculator work simpler.

Set up your proportion for inches:

Cross multiply, solve for , and round to the nearest 0.2 (1/5)

Set up your proportion for cm:

Cross multiply, solve for , and round to the nearest whole number.

John

My calculator said it, I believe it, that settles it