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Finding the Fourth Proportional to 18,040.62, 27,044.37 and 6,943.98

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Solution

The fourth proportional to 18,040.62, 27,044.37 and 6,943.98 is: 10,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,040.62 : 27,044.37 = 6,943.98 : x
  2. Step 2: Convert to fraction form
    18,040.62/27,044.37 = 6,943.98/x
  3. Step 3: Cross multiply
    18,040.62x = 27,044.37 × 6,943.98
  4. Step 4: Simplify right side
    18,040.62x = 187,795,564.39
  5. Step 5: Solve for x
    x = 187,795,564.39/18,040.62
  6. Step 6: Final answer
    x = 10,409.60

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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.