a Write the ratio of replica height to actual height.
B
b Multiply the scale by a conversion factor to get a unitless ratio.
A
a 1in.:1ft
B
b The replica is 112 times as tall as the actual sculpture.
Practice makes perfect
a We are given that a replica of The thinker is 10in. inches tall and that the actual sculpture is 10feet tall. To evaluate the scale of the model, we will write the ratio of replica height to actual height.
replica height/actual height=10in./10ft=1in./1ft
The scale of the replica is 1in.:1ft.
b In this part, we are asked to find how many times as tall as the actual sculpture the replica is. To do this, we will multiply the scale we found in the previous part, 1in.1ft, by a conversion factor that relates inches to feet, which is 1ft12in..
