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Finding the Fourth Proportional to 57,776.52, 79,740.75 and 35,122.62

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Solution

The fourth proportional to 57,776.52, 79,740.75 and 35,122.62 is: 48,474.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,776.52 : 79,740.75 = 35,122.62 : x
  2. Step 2: Convert to fraction form
    57,776.52/79,740.75 = 35,122.62/x
  3. Step 3: Cross multiply
    57,776.52x = 79,740.75 × 35,122.62
  4. Step 4: Simplify right side
    57,776.52x = 2,800,704,351.33
  5. Step 5: Solve for x
    x = 2,800,704,351.33/57,776.52
  6. Step 6: Final answer
    x = 48,474.78

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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.