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Finding the Fourth Proportional to 18,006.44, 27,012.15 and 6,320.57

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Solution

The fourth proportional to 18,006.44, 27,012.15 and 6,320.57 is: 9,481.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,006.44 : 27,012.15 = 6,320.57 : x
  2. Step 2: Convert to fraction form
    18,006.44/27,012.15 = 6,320.57/x
  3. Step 3: Cross multiply
    18,006.44x = 27,012.15 × 6,320.57
  4. Step 4: Simplify right side
    18,006.44x = 170,732,049.86
  5. Step 5: Solve for x
    x = 170,732,049.86/18,006.44
  6. Step 6: Final answer
    x = 9,481.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.