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Finding the Fourth Proportional to 52,910.88, 79,382.16 and 31,873.92

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Solution

The fourth proportional to 52,910.88, 79,382.16 and 31,873.92 is: 47,820.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,910.88 : 79,382.16 = 31,873.92 : x
  2. Step 2: Convert to fraction form
    52,910.88/79,382.16 = 31,873.92/x
  3. Step 3: Cross multiply
    52,910.88x = 79,382.16 × 31,873.92
  4. Step 4: Simplify right side
    52,910.88x = 2,530,220,617.27
  5. Step 5: Solve for x
    x = 2,530,220,617.27/52,910.88
  6. Step 6: Final answer
    x = 47,820.42

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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.