An anatomy model of an adult human is 7 inches tall. Most adult humans are between 5 feet and 6 feet tall. What is the approximate scale factor of the model?

Answer 1

between 7/60 and 7/72
now, if you want that as 1:n, then divide top and bottom by the numerator
7/40 = 1 : 40/7 = 1 : 5.7