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Finding the Fourth Proportional to 33,849.20, 50,676.60 and 20,727.20

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Solution

The fourth proportional to 33,849.20, 50,676.60 and 20,727.20 is: 31,031.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,849.20 : 50,676.60 = 20,727.20 : x
  2. Step 2: Convert to fraction form
    33,849.20/50,676.60 = 20,727.20/x
  3. Step 3: Cross multiply
    33,849.20x = 50,676.60 × 20,727.20
  4. Step 4: Simplify right side
    33,849.20x = 1,050,384,023.52
  5. Step 5: Solve for x
    x = 1,050,384,023.52/33,849.20
  6. Step 6: Final answer
    x = 31,031.28

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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.