Answer:
66 ft.
Step-by-step explanation:
It is given that the windows on a building are proportional to size of the building.
Height of each window = 18 in
Width of each window = 11 in
Height of the building = 108 ft
Let the width of the building be x.
Since windows on a building are proportional to size of the building, therefore
[tex]\dfrac{18}{11}=\dfrac{108}{x}[/tex]
On cross multiplication we get
[tex]18\times x=108\times 11[/tex]
Divide both sides by 18.
[tex]x=\frac{108\times 11}{18}[/tex]
[tex]x=66[/tex]
Therefore, the width of the building is 66 ft.
