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Finding the Fourth Proportional to 16,257.19, 22,439.55 and 9,543.10

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Solution

The fourth proportional to 16,257.19, 22,439.55 and 9,543.10 is: 13,172.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,257.19 : 22,439.55 = 9,543.10 : x
  2. Step 2: Convert to fraction form
    16,257.19/22,439.55 = 9,543.10/x
  3. Step 3: Cross multiply
    16,257.19x = 22,439.55 × 9,543.10
  4. Step 4: Simplify right side
    16,257.19x = 214,142,869.61
  5. Step 5: Solve for x
    x = 214,142,869.61/16,257.19
  6. Step 6: Final answer
    x = 13,172.19

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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.