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Finding the Fourth Proportional to 48,889.20, 73,204.20 and 38,521.20

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Solution

The fourth proportional to 48,889.20, 73,204.20 and 38,521.20 is: 57,679.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,889.20 : 73,204.20 = 38,521.20 : x
  2. Step 2: Convert to fraction form
    48,889.20/73,204.20 = 38,521.20/x
  3. Step 3: Cross multiply
    48,889.20x = 73,204.20 × 38,521.20
  4. Step 4: Simplify right side
    48,889.20x = 2,819,913,629.04
  5. Step 5: Solve for x
    x = 2,819,913,629.04/48,889.20
  6. Step 6: Final answer
    x = 57,679.68

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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.