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Finding the Fourth Proportional to 18,443.34, 27,673.11 and 6,759.90

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Solution

The fourth proportional to 18,443.34, 27,673.11 and 6,759.90 is: 10,142.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.34 : 27,673.11 = 6,759.90 : x
  2. Step 2: Convert to fraction form
    18,443.34/27,673.11 = 6,759.90/x
  3. Step 3: Cross multiply
    18,443.34x = 27,673.11 × 6,759.90
  4. Step 4: Simplify right side
    18,443.34x = 187,067,456.29
  5. Step 5: Solve for x
    x = 187,067,456.29/18,443.34
  6. Step 6: Final answer
    x = 10,142.82

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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.