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Finding the Fourth Proportional to 5,194.53, 7,791.78 and 4,115.61

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Solution

The fourth proportional to 5,194.53, 7,791.78 and 4,115.61 is: 6,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,194.53 : 7,791.78 = 4,115.61 : x
  2. Step 2: Convert to fraction form
    5,194.53/7,791.78 = 4,115.61/x
  3. Step 3: Cross multiply
    5,194.53x = 7,791.78 × 4,115.61
  4. Step 4: Simplify right side
    5,194.53x = 32,067,927.69
  5. Step 5: Solve for x
    x = 32,067,927.69/5,194.53
  6. Step 6: Final answer
    x = 6,173.40

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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.