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Finding the Fourth Proportional to 8,078.52, 11,149.20 and 4,936.80

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Solution

The fourth proportional to 8,078.52, 11,149.20 and 4,936.80 is: 6,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.52 : 11,149.20 = 4,936.80 : x
  2. Step 2: Convert to fraction form
    8,078.52/11,149.20 = 4,936.80/x
  3. Step 3: Cross multiply
    8,078.52x = 11,149.20 × 4,936.80
  4. Step 4: Simplify right side
    8,078.52x = 55,041,370.56
  5. Step 5: Solve for x
    x = 55,041,370.56/8,078.52
  6. Step 6: Final answer
    x = 6,813.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.