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Finding the Third Proportional to 17,476 and 36,920

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Solution

The third proportional to 17,476 and 36,920 is: 77,997.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,476 : 36,920 = 36,920 : x
  2. Step 2: Convert to fraction form
    17,476/36,920 = 36,920/x
  3. Step 3: Cross multiply
    17,476x = 36,920 × 36,920
  4. Step 4: Simplify right side
    17,476x = 1,363,086,400
  5. Step 5: Solve for x
    x = 1,363,086,400/17,476
  6. Step 6: Final answer
    x = 77,997.62

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.