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Finding the Fourth Proportional to 57,908.10, 86,862.15 and 22,843.20

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Solution

The fourth proportional to 57,908.10, 86,862.15 and 22,843.20 is: 34,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,908.10 : 86,862.15 = 22,843.20 : x
  2. Step 2: Convert to fraction form
    57,908.10/86,862.15 = 22,843.20/x
  3. Step 3: Cross multiply
    57,908.10x = 86,862.15 × 22,843.20
  4. Step 4: Simplify right side
    57,908.10x = 1,984,209,464.88
  5. Step 5: Solve for x
    x = 1,984,209,464.88/57,908.10
  6. Step 6: Final answer
    x = 34,264.80

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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.