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Finding the Fourth Proportional to 6,791.55, 10,188.84 and 3,092.78

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Solution

The fourth proportional to 6,791.55, 10,188.84 and 3,092.78 is: 4,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.55 : 10,188.84 = 3,092.78 : x
  2. Step 2: Convert to fraction form
    6,791.55/10,188.84 = 3,092.78/x
  3. Step 3: Cross multiply
    6,791.55x = 10,188.84 × 3,092.78
  4. Step 4: Simplify right side
    6,791.55x = 31,511,860.25
  5. Step 5: Solve for x
    x = 31,511,860.25/6,791.55
  6. Step 6: Final answer
    x = 4,639.87

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1.5x scale

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.