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Finding the Fourth Proportional to 63,086.40, 87,061.80 and 34,793.88

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Solution

The fourth proportional to 63,086.40, 87,061.80 and 34,793.88 is: 48,016.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,086.40 : 87,061.80 = 34,793.88 : x
  2. Step 2: Convert to fraction form
    63,086.40/87,061.80 = 34,793.88/x
  3. Step 3: Cross multiply
    63,086.40x = 87,061.80 × 34,793.88
  4. Step 4: Simplify right side
    63,086.40x = 3,029,217,821.78
  5. Step 5: Solve for x
    x = 3,029,217,821.78/63,086.40
  6. Step 6: Final answer
    x = 48,016.97

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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.