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Finding the Fourth Proportional to 7,793.83, 11,691.15 and 3,896.92

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Solution

The fourth proportional to 7,793.83, 11,691.15 and 3,896.92 is: 5,845.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793.83 : 11,691.15 = 3,896.92 : x
  2. Step 2: Convert to fraction form
    7,793.83/11,691.15 = 3,896.92/x
  3. Step 3: Cross multiply
    7,793.83x = 11,691.15 × 3,896.92
  4. Step 4: Simplify right side
    7,793.83x = 45,559,476.26
  5. Step 5: Solve for x
    x = 45,559,476.26/7,793.83
  6. Step 6: Final answer
    x = 5,845.58

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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.