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Finding the Third Proportional to 36,521 and 54,691

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Solution

The third proportional to 36,521 and 54,691 is: 81,900.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,521 : 54,691 = 54,691 : x
  2. Step 2: Convert to fraction form
    36,521/54,691 = 54,691/x
  3. Step 3: Cross multiply
    36,521x = 54,691 × 54,691
  4. Step 4: Simplify right side
    36,521x = 2,991,105,481
  5. Step 5: Solve for x
    x = 2,991,105,481/36,521
  6. Step 6: Final answer
    x = 81,900.97

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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.