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Finding the Fourth Proportional to 57,832.75, 86,650.02 and 38,821.79

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Solution

The fourth proportional to 57,832.75, 86,650.02 and 38,821.79 is: 58,166.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,832.75 : 86,650.02 = 38,821.79 : x
  2. Step 2: Convert to fraction form
    57,832.75/86,650.02 = 38,821.79/x
  3. Step 3: Cross multiply
    57,832.75x = 86,650.02 × 38,821.79
  4. Step 4: Simplify right side
    57,832.75x = 3,363,908,879.94
  5. Step 5: Solve for x
    x = 3,363,908,879.94/57,832.75
  6. Step 6: Final answer
    x = 58,166.16

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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.