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Finding the Fourth Proportional to 62,748.48, 86,590.52 and 38,874.64

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Solution

The fourth proportional to 62,748.48, 86,590.52 and 38,874.64 is: 53,645.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,748.48 : 86,590.52 = 38,874.64 : x
  2. Step 2: Convert to fraction form
    62,748.48/86,590.52 = 38,874.64/x
  3. Step 3: Cross multiply
    62,748.48x = 86,590.52 × 38,874.64
  4. Step 4: Simplify right side
    62,748.48x = 3,366,175,292.41
  5. Step 5: Solve for x
    x = 3,366,175,292.41/62,748.48
  6. Step 6: Final answer
    x = 53,645.53

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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.