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Finding the Fourth Proportional to 57,879.72, 79,896.96 and 37,753.92

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Solution

The fourth proportional to 57,879.72, 79,896.96 and 37,753.92 is: 52,115.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,879.72 : 79,896.96 = 37,753.92 : x
  2. Step 2: Convert to fraction form
    57,879.72/79,896.96 = 37,753.92/x
  3. Step 3: Cross multiply
    57,879.72x = 79,896.96 × 37,753.92
  4. Step 4: Simplify right side
    57,879.72x = 3,016,423,436.08
  5. Step 5: Solve for x
    x = 3,016,423,436.08/57,879.72
  6. Step 6: Final answer
    x = 52,115.38

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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.