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Finding the Fourth Proportional to 65,906.86, 98,839.85 and 23,781.49

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Solution

The fourth proportional to 65,906.86, 98,839.85 and 23,781.49 is: 35,664.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,906.86 : 98,839.85 = 23,781.49 : x
  2. Step 2: Convert to fraction form
    65,906.86/98,839.85 = 23,781.49/x
  3. Step 3: Cross multiply
    65,906.86x = 98,839.85 × 23,781.49
  4. Step 4: Simplify right side
    65,906.86x = 2,350,558,716.73
  5. Step 5: Solve for x
    x = 2,350,558,716.73/65,906.86
  6. Step 6: Final answer
    x = 35,664.86

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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.