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Finding the Fourth Proportional to 63,722.52, 87,941.70 and 38,229.99

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Solution

The fourth proportional to 63,722.52, 87,941.70 and 38,229.99 is: 52,760.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,722.52 : 87,941.70 = 38,229.99 : x
  2. Step 2: Convert to fraction form
    63,722.52/87,941.70 = 38,229.99/x
  3. Step 3: Cross multiply
    63,722.52x = 87,941.70 × 38,229.99
  4. Step 4: Simplify right side
    63,722.52x = 3,362,010,311.58
  5. Step 5: Solve for x
    x = 3,362,010,311.58/63,722.52
  6. Step 6: Final answer
    x = 52,760.16

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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.