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Finding the Fourth Proportional to 57,640.80, 79,542.72 and 32,147.92

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Solution

The fourth proportional to 57,640.80, 79,542.72 and 32,147.92 is: 44,363.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,640.80 : 79,542.72 = 32,147.92 : x
  2. Step 2: Convert to fraction form
    57,640.80/79,542.72 = 32,147.92/x
  3. Step 3: Cross multiply
    57,640.80x = 79,542.72 × 32,147.92
  4. Step 4: Simplify right side
    57,640.80x = 2,557,132,999.14
  5. Step 5: Solve for x
    x = 2,557,132,999.14/57,640.80
  6. Step 6: Final answer
    x = 44,363.25

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1.5x scale

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.