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Finding the Fourth Proportional to 63,711.80, 87,926.86 and 38,219.24

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Solution

The fourth proportional to 63,711.80, 87,926.86 and 38,219.24 is: 52,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,711.80 : 87,926.86 = 38,219.24 : x
  2. Step 2: Convert to fraction form
    63,711.80/87,926.86 = 38,219.24/x
  3. Step 3: Cross multiply
    63,711.80x = 87,926.86 × 38,219.24
  4. Step 4: Simplify right side
    63,711.80x = 3,360,497,764.79
  5. Step 5: Solve for x
    x = 3,360,497,764.79/63,711.80
  6. Step 6: Final answer
    x = 52,745.30

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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.