A tree casts a 25 foot shadow. At the same time of day, a 6 foot man standing near the tree casts a 9 foot shadow. What is the approximate height of the tree to the nearest foot?
Ratio of height of the man to the length of the shadow = 6:9 = 2:3 Ratio of height of the tree to the length of its shadow = x:25 = 2:3 x/25 = 2/3 x = (25 x 2)/3 = 50/3 = 16.67