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Finding the Fourth Proportional to 63,644.17, 87,819.19 and 36,781.49

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Solution

The fourth proportional to 63,644.17, 87,819.19 and 36,781.49 is: 50,752.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,644.17 : 87,819.19 = 36,781.49 : x
  2. Step 2: Convert to fraction form
    63,644.17/87,819.19 = 36,781.49/x
  3. Step 3: Cross multiply
    63,644.17x = 87,819.19 × 36,781.49
  4. Step 4: Simplify right side
    63,644.17x = 3,230,120,658.79
  5. Step 5: Solve for x
    x = 3,230,120,658.79/63,644.17
  6. Step 6: Final answer
    x = 50,752.81

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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.