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Finding the Fourth Proportional to 57,691.68, 79,620.16 and 35,025.44

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Solution

The fourth proportional to 57,691.68, 79,620.16 and 35,025.44 is: 48,338.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,691.68 : 79,620.16 = 35,025.44 : x
  2. Step 2: Convert to fraction form
    57,691.68/79,620.16 = 35,025.44/x
  3. Step 3: Cross multiply
    57,691.68x = 79,620.16 × 35,025.44
  4. Step 4: Simplify right side
    57,691.68x = 2,788,731,136.87
  5. Step 5: Solve for x
    x = 2,788,731,136.87/57,691.68
  6. Step 6: Final answer
    x = 48,338.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.