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Finding the Fourth Proportional to 57,443.88, 86,165.87 and 18,004.11

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Solution

The fourth proportional to 57,443.88, 86,165.87 and 18,004.11 is: 27,006.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,443.88 : 86,165.87 = 18,004.11 : x
  2. Step 2: Convert to fraction form
    57,443.88/86,165.87 = 18,004.11/x
  3. Step 3: Cross multiply
    57,443.88x = 86,165.87 × 18,004.11
  4. Step 4: Simplify right side
    57,443.88x = 1,551,339,711.71
  5. Step 5: Solve for x
    x = 1,551,339,711.71/57,443.88
  6. Step 6: Final answer
    x = 27,006.18

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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.