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Finding the Fourth Proportional to 18,296.11, 25,248.66 and 9,912.61

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Solution

The fourth proportional to 18,296.11, 25,248.66 and 9,912.61 is: 13,679.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.11 : 25,248.66 = 9,912.61 : x
  2. Step 2: Convert to fraction form
    18,296.11/25,248.66 = 9,912.61/x
  3. Step 3: Cross multiply
    18,296.11x = 25,248.66 × 9,912.61
  4. Step 4: Simplify right side
    18,296.11x = 250,280,119.60
  5. Step 5: Solve for x
    x = 250,280,119.60/18,296.11
  6. Step 6: Final answer
    x = 13,679.42

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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.