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Finding the Fourth Proportional to 48,887.20, 73,201.20 and 38,519.20

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Solution

The fourth proportional to 48,887.20, 73,201.20 and 38,519.20 is: 57,676.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,887.20 : 73,201.20 = 38,519.20 : x
  2. Step 2: Convert to fraction form
    48,887.20/73,201.20 = 38,519.20/x
  3. Step 3: Cross multiply
    48,887.20x = 73,201.20 × 38,519.20
  4. Step 4: Simplify right side
    48,887.20x = 2,819,651,663.04
  5. Step 5: Solve for x
    x = 2,819,651,663.04/48,887.20
  6. Step 6: Final answer
    x = 57,676.69

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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.