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Finding the Fourth Proportional to 57,894.75, 86,987.32 and 36,843.86

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Solution

The fourth proportional to 57,894.75, 86,987.32 and 36,843.86 is: 55,358.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,894.75 : 86,987.32 = 36,843.86 : x
  2. Step 2: Convert to fraction form
    57,894.75/86,987.32 = 36,843.86/x
  3. Step 3: Cross multiply
    57,894.75x = 86,987.32 × 36,843.86
  4. Step 4: Simplify right side
    57,894.75x = 3,204,948,765.21
  5. Step 5: Solve for x
    x = 3,204,948,765.21/57,894.75
  6. Step 6: Final answer
    x = 55,358.19

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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.