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Finding the Fourth Proportional to 57,593.12, 79,478.16 and 32,450.72

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Solution

The fourth proportional to 57,593.12, 79,478.16 and 32,450.72 is: 44,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,593.12 : 79,478.16 = 32,450.72 : x
  2. Step 2: Convert to fraction form
    57,593.12/79,478.16 = 32,450.72/x
  3. Step 3: Cross multiply
    57,593.12x = 79,478.16 × 32,450.72
  4. Step 4: Simplify right side
    57,593.12x = 2,579,123,516.28
  5. Step 5: Solve for x
    x = 2,579,123,516.28/57,593.12
  6. Step 6: Final answer
    x = 44,781.80

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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.