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Finding the Fourth Proportional to 63,834.81, 87,901.83 and 62,418.66

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Solution

The fourth proportional to 63,834.81, 87,901.83 and 62,418.66 is: 85,951.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,834.81 : 87,901.83 = 62,418.66 : x
  2. Step 2: Convert to fraction form
    63,834.81/87,901.83 = 62,418.66/x
  3. Step 3: Cross multiply
    63,834.81x = 87,901.83 × 62,418.66
  4. Step 4: Simplify right side
    63,834.81x = 5,486,714,440.15
  5. Step 5: Solve for x
    x = 5,486,714,440.15/63,834.81
  6. Step 6: Final answer
    x = 85,951.76

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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.