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Finding the Fourth Proportional to 18,060.73, 27,101.79 and 8,199.86

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Solution

The fourth proportional to 18,060.73, 27,101.79 and 8,199.86 is: 12,304.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,060.73 : 27,101.79 = 8,199.86 : x
  2. Step 2: Convert to fraction form
    18,060.73/27,101.79 = 8,199.86/x
  3. Step 3: Cross multiply
    18,060.73x = 27,101.79 × 8,199.86
  4. Step 4: Simplify right side
    18,060.73x = 222,230,748.24
  5. Step 5: Solve for x
    x = 222,230,748.24/18,060.73
  6. Step 6: Final answer
    x = 12,304.64

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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.