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Finding the Fourth Proportional to 24,687.70, 34,068.90 and 13,357.18

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Solution

The fourth proportional to 24,687.70, 34,068.90 and 13,357.18 is: 18,432.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,687.70 : 34,068.90 = 13,357.18 : x
  2. Step 2: Convert to fraction form
    24,687.70/34,068.90 = 13,357.18/x
  3. Step 3: Cross multiply
    24,687.70x = 34,068.90 × 13,357.18
  4. Step 4: Simplify right side
    24,687.70x = 455,064,429.70
  5. Step 5: Solve for x
    x = 455,064,429.70/24,687.70
  6. Step 6: Final answer
    x = 18,432.84

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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.