### Home > CC2MN > Chapter cc29 > Lesson cc29.2.3 > Problem 9-79

9-79.

Glenda made a scale model of the Empire State Building in New York. The building itself is 1250 feet high, and her scale model is 5 feet high. *9-79 HW eTool*Write a ratio that compares the heights of the two buildings.

If the doorway of Glenda’s model is 2 inches wide, how wide would you expect the doorway of the real building to be? Write and solve a proportion.

If the real building contains 102 floors, how many floors should Glenda’s model contain?

41 feet, 8 inches. Remember to show your work.

Do you change the number of floors or the size of each floor?

Use the sliders in the eTool below to adjust the heights for the scale factor ratio.

Click the link at right for the full eTool version: *CC2 9-79 HW eTool*