Question 437726
Hat sizes are determined by measuring the circumference of one's head in either inches or centimeters. Use ratio and proportion to complete the following table.

Hat size        Head Circumference          Head Circumference
               (to nearest 1/5 inch)         (to nearest centimeter)


6 7/8                 21 3/5                         55

   ?                    ?                            62


The first is rounded to the nearest eith inch and second is rounded to neares fith inch.

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x/(6 7/8) = 62/55
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x/(55/8) = 62/55
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8x/55 = 62/55
8x = 62
x = 31/4 = 7 3/4
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x/(21 3/5) = 62/55
x/(108/5) = 62/55
5x/108 = 62/55
5x = 108(62/55)
x = 24.3491
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Cheers,
Stan H.