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Finding the Fourth Proportional to 65,100.83, 89,839.85 and 38,244.47

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Solution

The fourth proportional to 65,100.83, 89,839.85 and 38,244.47 is: 52,777.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,100.83 : 89,839.85 = 38,244.47 : x
  2. Step 2: Convert to fraction form
    65,100.83/89,839.85 = 38,244.47/x
  3. Step 3: Cross multiply
    65,100.83x = 89,839.85 × 38,244.47
  4. Step 4: Simplify right side
    65,100.83x = 3,435,877,448.13
  5. Step 5: Solve for x
    x = 3,435,877,448.13/65,100.83
  6. Step 6: Final answer
    x = 52,777.78

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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.