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Finding the Fourth Proportional to 52,947.46, 79,421.22 and 33,239.86

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Solution

The fourth proportional to 52,947.46, 79,421.22 and 33,239.86 is: 49,859.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,947.46 : 79,421.22 = 33,239.86 : x
  2. Step 2: Convert to fraction form
    52,947.46/79,421.22 = 33,239.86/x
  3. Step 3: Cross multiply
    52,947.46x = 79,421.22 × 33,239.86
  4. Step 4: Simplify right side
    52,947.46x = 2,639,950,035.28
  5. Step 5: Solve for x
    x = 2,639,950,035.28/52,947.46
  6. Step 6: Final answer
    x = 49,859.80

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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.