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Finding the Third Proportional to 18,332 and 39,508

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Solution

The third proportional to 18,332 and 39,508 is: 85,145.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,332 : 39,508 = 39,508 : x
  2. Step 2: Convert to fraction form
    18,332/39,508 = 39,508/x
  3. Step 3: Cross multiply
    18,332x = 39,508 × 39,508
  4. Step 4: Simplify right side
    18,332x = 1,560,882,064
  5. Step 5: Solve for x
    x = 1,560,882,064/18,332
  6. Step 6: Final answer
    x = 85,145.21

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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.