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Finding the Fourth Proportional to 61,404.92, 84,748.98 and 38,756.26

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Solution

The fourth proportional to 61,404.92, 84,748.98 and 38,756.26 is: 53,490.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,404.92 : 84,748.98 = 38,756.26 : x
  2. Step 2: Convert to fraction form
    61,404.92/84,748.98 = 38,756.26/x
  3. Step 3: Cross multiply
    61,404.92x = 84,748.98 × 38,756.26
  4. Step 4: Simplify right side
    61,404.92x = 3,284,553,503.61
  5. Step 5: Solve for x
    x = 3,284,553,503.61/61,404.92
  6. Step 6: Final answer
    x = 53,490.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.