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Finding the Third Proportional to 62,612 and 91,422

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Solution

The third proportional to 62,612 and 91,422 is: 133,488.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,612 : 91,422 = 91,422 : x
  2. Step 2: Convert to fraction form
    62,612/91,422 = 91,422/x
  3. Step 3: Cross multiply
    62,612x = 91,422 × 91,422
  4. Step 4: Simplify right side
    62,612x = 8,357,982,084
  5. Step 5: Solve for x
    x = 8,357,982,084/62,612
  6. Step 6: Final answer
    x = 133,488.50

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.