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Finding the Fourth Proportional to 8,079.39, 12,123.76 and 3,399.03

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Solution

The fourth proportional to 8,079.39, 12,123.76 and 3,399.03 is: 5,100.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.39 : 12,123.76 = 3,399.03 : x
  2. Step 2: Convert to fraction form
    8,079.39/12,123.76 = 3,399.03/x
  3. Step 3: Cross multiply
    8,079.39x = 12,123.76 × 3,399.03
  4. Step 4: Simplify right side
    8,079.39x = 41,208,963.33
  5. Step 5: Solve for x
    x = 41,208,963.33/8,079.39
  6. Step 6: Final answer
    x = 5,100.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.