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Omni-MATH / A cylinder with radius 15 and height 16 is inscribed in a sphere. Three…

Problem

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problem

A cylinder with radius 15 and height 16 is inscribed in a sphere. Three congruent smaller spheres of radius xx are externally tangent to the base of the cylinder, externally tangent to each other, and internally tangent to the large sphere. What is the value of xx?
Plain-text mathematical notation (without MathML)
A cylinder with radius 15 and height 16 is inscribed in a sphere. Three congruent smaller spheres of radius x are externally tangent to the base of the cylinder, externally tangent to each other, and internally tangent to the large sphere. What is the value of x?
Original LaTeX notation
A cylinder with radius 15 and height 16 is inscribed in a sphere. Three congruent smaller spheres of radius $x$ are externally tangent to the base of the cylinder, externally tangent to each other, and internally tangent to the large sphere. What is the value of $x$?

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