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Finding the Fourth Proportional to 18,040.66, 27,061.02 and 6,952.57

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Solution

The fourth proportional to 18,040.66, 27,061.02 and 6,952.57 is: 10,428.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,040.66 : 27,061.02 = 6,952.57 : x
  2. Step 2: Convert to fraction form
    18,040.66/27,061.02 = 6,952.57/x
  3. Step 3: Cross multiply
    18,040.66x = 27,061.02 × 6,952.57
  4. Step 4: Simplify right side
    18,040.66x = 188,143,568.17
  5. Step 5: Solve for x
    x = 188,143,568.17/18,040.66
  6. Step 6: Final answer
    x = 10,428.86

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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.