5ft 3in = 63 inches
8.5 feet = 102 inches
26ft = 312 inches
Set up a proportion:
63 312 inches
—— = ——-
102 X
Solve for x.
63x = 31,824
x = 505.1428571428571
Divide 505.1428571428571 by 12 to see how many ft that is.
505.1428571428571/ 12 = 42.0952380952381
It could be 42 ft or could round up to 43ft.
The length of the tree’s shadow is 42