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Finding the Fourth Proportional to 18,343.73, 27,511.17 and 8,473.52

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Solution

The fourth proportional to 18,343.73, 27,511.17 and 8,473.52 is: 12,708.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.73 : 27,511.17 = 8,473.52 : x
  2. Step 2: Convert to fraction form
    18,343.73/27,511.17 = 8,473.52/x
  3. Step 3: Cross multiply
    18,343.73x = 27,511.17 × 8,473.52
  4. Step 4: Simplify right side
    18,343.73x = 233,116,449.22
  5. Step 5: Solve for x
    x = 233,116,449.22/18,343.73
  6. Step 6: Final answer
    x = 12,708.24

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Why These Related Problems?

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