# Difference between revisions of "AoPS Wiki:Problem of the Day/June 22, 2011"

A tower of cubes has a height of infinity, and the tower goes on infinitely. The first cube has a side length of 3 feet. Every cube after that one has a side length that is $\frac{5}{7}$ as long as the side length of the cube beneath it. What is the total volume of the entire structure?

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