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Finding the Fourth Proportional to 57,691.80, 86,586.30 and 22,656.60

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Solution

The fourth proportional to 57,691.80, 86,586.30 and 22,656.60 is: 34,003.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,691.80 : 86,586.30 = 22,656.60 : x
  2. Step 2: Convert to fraction form
    57,691.80/86,586.30 = 22,656.60/x
  3. Step 3: Cross multiply
    57,691.80x = 86,586.30 × 22,656.60
  4. Step 4: Simplify right side
    57,691.80x = 1,961,751,164.58
  5. Step 5: Solve for x
    x = 1,961,751,164.58/57,691.80
  6. Step 6: Final answer
    x = 34,003.99

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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.