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Finding the Fourth Proportional to 48,760.20, 73,099.80 and 20,701.80

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Solution

The fourth proportional to 48,760.20, 73,099.80 and 20,701.80 is: 31,035.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,760.20 : 73,099.80 = 20,701.80 : x
  2. Step 2: Convert to fraction form
    48,760.20/73,099.80 = 20,701.80/x
  3. Step 3: Cross multiply
    48,760.20x = 73,099.80 × 20,701.80
  4. Step 4: Simplify right side
    48,760.20x = 1,513,297,439.64
  5. Step 5: Solve for x
    x = 1,513,297,439.64/48,760.20
  6. Step 6: Final answer
    x = 31,035.51

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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.