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Finding the Fourth Proportional to 56,747.20, 84,991.20 and 33,419.20

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Solution

The fourth proportional to 56,747.20, 84,991.20 and 33,419.20 is: 50,052.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,747.20 : 84,991.20 = 33,419.20 : x
  2. Step 2: Convert to fraction form
    56,747.20/84,991.20 = 33,419.20/x
  3. Step 3: Cross multiply
    56,747.20x = 84,991.20 × 33,419.20
  4. Step 4: Simplify right side
    56,747.20x = 2,840,337,911.04
  5. Step 5: Solve for x
    x = 2,840,337,911.04/56,747.20
  6. Step 6: Final answer
    x = 50,052.48

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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.