You can see that since the ratio of real building\textquotesingle s heights to the model building\textquotesingle s height is $1: 45$. If the height of the center is $1770$ feet, to find the height of the model, we divide by $45$ . That gives us $39.3$ which rounds to $39$ . Therefore, to the nearest whole number, the duplicate is (D) $39$ feet. 
An amusement park has a collection of scale models, with ratio $1: 45$, of buildings and other sights from around the country. If the height of the One World Trade Center is $1770$ feet. What is the height in feet of its replica to the nearest whole number? (adapted from 2018 AMC 8, Question 1) 

[1] $$36$$ 
[2] $$37$$ 
[3] $$38$$ 
[4] $$39$$ 
[5] $$41$$ 