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Finding the Fourth Proportional to 18,160.72, 25,061.16 and 11,098.96

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Solution

The fourth proportional to 18,160.72, 25,061.16 and 11,098.96 is: 15,316.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,160.72 : 25,061.16 = 11,098.96 : x
  2. Step 2: Convert to fraction form
    18,160.72/25,061.16 = 11,098.96/x
  3. Step 3: Cross multiply
    18,160.72x = 25,061.16 × 11,098.96
  4. Step 4: Simplify right side
    18,160.72x = 278,152,812.39
  5. Step 5: Solve for x
    x = 278,152,812.39/18,160.72
  6. Step 6: Final answer
    x = 15,316.18

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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.