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Finding the Fourth Proportional to 15,067.20, 22,601.20 and 4,679.20

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Solution

The fourth proportional to 15,067.20, 22,601.20 and 4,679.20 is: 7,018.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.20 : 22,601.20 = 4,679.20 : x
  2. Step 2: Convert to fraction form
    15,067.20/22,601.20 = 4,679.20/x
  3. Step 3: Cross multiply
    15,067.20x = 22,601.20 × 4,679.20
  4. Step 4: Simplify right side
    15,067.20x = 105,755,535.04
  5. Step 5: Solve for x
    x = 105,755,535.04/15,067.20
  6. Step 6: Final answer
    x = 7,018.92

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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.