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Finding the Fourth Proportional to 24,987.92, 34,438.20 and 22,120.88

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Solution

The fourth proportional to 24,987.92, 34,438.20 and 22,120.88 is: 30,486.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,987.92 : 34,438.20 = 22,120.88 : x
  2. Step 2: Convert to fraction form
    24,987.92/34,438.20 = 22,120.88/x
  3. Step 3: Cross multiply
    24,987.92x = 34,438.20 × 22,120.88
  4. Step 4: Simplify right side
    24,987.92x = 761,803,289.62
  5. Step 5: Solve for x
    x = 761,803,289.62/24,987.92
  6. Step 6: Final answer
    x = 30,486.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.