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Finding the Fourth Proportional to 18,481.60, 25,505.20 and 10,098.10

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Solution

The fourth proportional to 18,481.60, 25,505.20 and 10,098.10 is: 13,935.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.60 : 25,505.20 = 10,098.10 : x
  2. Step 2: Convert to fraction form
    18,481.60/25,505.20 = 10,098.10/x
  3. Step 3: Cross multiply
    18,481.60x = 25,505.20 × 10,098.10
  4. Step 4: Simplify right side
    18,481.60x = 257,554,060.12
  5. Step 5: Solve for x
    x = 257,554,060.12/18,481.60
  6. Step 6: Final answer
    x = 13,935.70

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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.