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Finding the Fourth Proportional to 15,179.87, 22,726.88 and 8,047.86

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Solution

The fourth proportional to 15,179.87, 22,726.88 and 8,047.86 is: 12,049.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,179.87 : 22,726.88 = 8,047.86 : x
  2. Step 2: Convert to fraction form
    15,179.87/22,726.88 = 8,047.86/x
  3. Step 3: Cross multiply
    15,179.87x = 22,726.88 × 8,047.86
  4. Step 4: Simplify right side
    15,179.87x = 182,902,844.95
  5. Step 5: Solve for x
    x = 182,902,844.95/15,179.87
  6. Step 6: Final answer
    x = 12,049.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.