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Finding the Fourth Proportional to 48,743.73, 73,100.70 and 20,663.25

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Solution

The fourth proportional to 48,743.73, 73,100.70 and 20,663.25 is: 30,988.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,743.73 : 73,100.70 = 20,663.25 : x
  2. Step 2: Convert to fraction form
    48,743.73/73,100.70 = 20,663.25/x
  3. Step 3: Cross multiply
    48,743.73x = 73,100.70 × 20,663.25
  4. Step 4: Simplify right side
    48,743.73x = 1,510,498,039.28
  5. Step 5: Solve for x
    x = 1,510,498,039.28/48,743.73
  6. Step 6: Final answer
    x = 30,988.56

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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.