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Finding the Fourth Proportional to 63,712.59, 87,793.79 and 49,284.81

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Solution

The fourth proportional to 63,712.59, 87,793.79 and 49,284.81 is: 67,912.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,712.59 : 87,793.79 = 49,284.81 : x
  2. Step 2: Convert to fraction form
    63,712.59/87,793.79 = 49,284.81/x
  3. Step 3: Cross multiply
    63,712.59x = 87,793.79 × 49,284.81
  4. Step 4: Simplify right side
    63,712.59x = 4,326,900,012.91
  5. Step 5: Solve for x
    x = 4,326,900,012.91/63,712.59
  6. Step 6: Final answer
    x = 67,912.79

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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.