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Finding the Fourth Proportional to 57,660.40, 86,512.20 and 22,625.20

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Solution

The fourth proportional to 57,660.40, 86,512.20 and 22,625.20 is: 33,946.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,660.40 : 86,512.20 = 22,625.20 : x
  2. Step 2: Convert to fraction form
    57,660.40/86,512.20 = 22,625.20/x
  3. Step 3: Cross multiply
    57,660.40x = 86,512.20 × 22,625.20
  4. Step 4: Simplify right side
    57,660.40x = 1,957,355,827.44
  5. Step 5: Solve for x
    x = 1,957,355,827.44/57,660.40
  6. Step 6: Final answer
    x = 33,946.28

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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.