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Finding the Fourth Proportional to 57,522.30, 86,292.90 and 18,069.90

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Solution

The fourth proportional to 57,522.30, 86,292.90 and 18,069.90 is: 27,107.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,522.30 : 86,292.90 = 18,069.90 : x
  2. Step 2: Convert to fraction form
    57,522.30/86,292.90 = 18,069.90/x
  3. Step 3: Cross multiply
    57,522.30x = 86,292.90 × 18,069.90
  4. Step 4: Simplify right side
    57,522.30x = 1,559,304,073.71
  5. Step 5: Solve for x
    x = 1,559,304,073.71/57,522.30
  6. Step 6: Final answer
    x = 27,107.82

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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.