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Finding the Fourth Proportional to 18,233.98, 27,340.17 and 7,127.80

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Solution

The fourth proportional to 18,233.98, 27,340.17 and 7,127.80 is: 10,687.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,233.98 : 27,340.17 = 7,127.80 : x
  2. Step 2: Convert to fraction form
    18,233.98/27,340.17 = 7,127.80/x
  3. Step 3: Cross multiply
    18,233.98x = 27,340.17 × 7,127.80
  4. Step 4: Simplify right side
    18,233.98x = 194,875,263.73
  5. Step 5: Solve for x
    x = 194,875,263.73/18,233.98
  6. Step 6: Final answer
    x = 10,687.48

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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.