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Finding the Fourth Proportional to 33,481.20, 50,164.20 and 28,297.20

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Solution

The fourth proportional to 33,481.20, 50,164.20 and 28,297.20 is: 42,397.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,481.20 : 50,164.20 = 28,297.20 : x
  2. Step 2: Convert to fraction form
    33,481.20/50,164.20 = 28,297.20/x
  3. Step 3: Cross multiply
    33,481.20x = 50,164.20 × 28,297.20
  4. Step 4: Simplify right side
    33,481.20x = 1,419,506,400.24
  5. Step 5: Solve for x
    x = 1,419,506,400.24/33,481.20
  6. Step 6: Final answer
    x = 42,397.12

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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.