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Finding the Fourth Proportional to 48,710.20, 73,024.80 and 20,651.80

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Solution

The fourth proportional to 48,710.20, 73,024.80 and 20,651.80 is: 30,960.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,710.20 : 73,024.80 = 20,651.80 : x
  2. Step 2: Convert to fraction form
    48,710.20/73,024.80 = 20,651.80/x
  3. Step 3: Cross multiply
    48,710.20x = 73,024.80 × 20,651.80
  4. Step 4: Simplify right side
    48,710.20x = 1,508,093,564.64
  5. Step 5: Solve for x
    x = 1,508,093,564.64/48,710.20
  6. Step 6: Final answer
    x = 30,960.53

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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.