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Finding the Third Proportional to 14,515 and 21,716

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Solution

The third proportional to 14,515 and 21,716 is: 32,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515 : 21,716 = 21,716 : x
  2. Step 2: Convert to fraction form
    14,515/21,716 = 21,716/x
  3. Step 3: Cross multiply
    14,515x = 21,716 × 21,716
  4. Step 4: Simplify right side
    14,515x = 471,584,656
  5. Step 5: Solve for x
    x = 471,584,656/14,515
  6. Step 6: Final answer
    x = 32,489.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.