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Finding the Fourth Proportional to 24,687.20, 34,068.33 and 13,509.20

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Solution

The fourth proportional to 24,687.20, 34,068.33 and 13,509.20 is: 18,642.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,687.20 : 34,068.33 = 13,509.20 : x
  2. Step 2: Convert to fraction form
    24,687.20/34,068.33 = 13,509.20/x
  3. Step 3: Cross multiply
    24,687.20x = 34,068.33 × 13,509.20
  4. Step 4: Simplify right side
    24,687.20x = 460,235,713.29
  5. Step 5: Solve for x
    x = 460,235,713.29/24,687.20
  6. Step 6: Final answer
    x = 18,642.69

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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.