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Finding the Fourth Proportional to 18,443.52, 25,444.41 and 11,732.85

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Solution

The fourth proportional to 18,443.52, 25,444.41 and 11,732.85 is: 16,186.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.52 : 25,444.41 = 11,732.85 : x
  2. Step 2: Convert to fraction form
    18,443.52/25,444.41 = 11,732.85/x
  3. Step 3: Cross multiply
    18,443.52x = 25,444.41 × 11,732.85
  4. Step 4: Simplify right side
    18,443.52x = 298,535,445.87
  5. Step 5: Solve for x
    x = 298,535,445.87/18,443.52
  6. Step 6: Final answer
    x = 16,186.47

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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.