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Finding the Fourth Proportional to 57,796.20, 86,694.30 and 38,769.30

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Solution

The fourth proportional to 57,796.20, 86,694.30 and 38,769.30 is: 58,153.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,796.20 : 86,694.30 = 38,769.30 : x
  2. Step 2: Convert to fraction form
    57,796.20/86,694.30 = 38,769.30/x
  3. Step 3: Cross multiply
    57,796.20x = 86,694.30 × 38,769.30
  4. Step 4: Simplify right side
    57,796.20x = 3,361,077,324.99
  5. Step 5: Solve for x
    x = 3,361,077,324.99/57,796.20
  6. Step 6: Final answer
    x = 58,153.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.