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Finding the Fourth Proportional to 48,338.73, 72,534.02 and 20,630.25

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Solution

The fourth proportional to 48,338.73, 72,534.02 and 20,630.25 is: 30,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,338.73 : 72,534.02 = 20,630.25 : x
  2. Step 2: Convert to fraction form
    48,338.73/72,534.02 = 20,630.25/x
  3. Step 3: Cross multiply
    48,338.73x = 72,534.02 × 20,630.25
  4. Step 4: Simplify right side
    48,338.73x = 1,496,394,862.95
  5. Step 5: Solve for x
    x = 1,496,394,862.95/48,338.73
  6. Step 6: Final answer
    x = 30,956.44

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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.