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Finding the Fourth Proportional to 57,691.80, 86,537.70 and 32,722.20

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Solution

The fourth proportional to 57,691.80, 86,537.70 and 32,722.20 is: 49,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,691.80 : 86,537.70 = 32,722.20 : x
  2. Step 2: Convert to fraction form
    57,691.80/86,537.70 = 32,722.20/x
  3. Step 3: Cross multiply
    57,691.80x = 86,537.70 × 32,722.20
  4. Step 4: Simplify right side
    57,691.80x = 2,831,703,926.94
  5. Step 5: Solve for x
    x = 2,831,703,926.94/57,691.80
  6. Step 6: Final answer
    x = 49,083.30

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1.5x scale

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.