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Finding the Fourth Proportional to 38,579.68, 57,871.50 and 10,879.84

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Solution

The fourth proportional to 38,579.68, 57,871.50 and 10,879.84 is: 16,320.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,579.68 : 57,871.50 = 10,879.84 : x
  2. Step 2: Convert to fraction form
    38,579.68/57,871.50 = 10,879.84/x
  3. Step 3: Cross multiply
    38,579.68x = 57,871.50 × 10,879.84
  4. Step 4: Simplify right side
    38,579.68x = 629,632,660.56
  5. Step 5: Solve for x
    x = 629,632,660.56/38,579.68
  6. Step 6: Final answer
    x = 16,320.32

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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.