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Finding the Third Proportional to 29,112 and 62,872

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Solution

The third proportional to 29,112 and 62,872 is: 135,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,112 : 62,872 = 62,872 : x
  2. Step 2: Convert to fraction form
    29,112/62,872 = 62,872/x
  3. Step 3: Cross multiply
    29,112x = 62,872 × 62,872
  4. Step 4: Simplify right side
    29,112x = 3,952,888,384
  5. Step 5: Solve for x
    x = 3,952,888,384/29,112
  6. Step 6: Final answer
    x = 135,782.10

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.