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Finding the Fourth Proportional to 7,794.48, 11,691.37 and 2,863.76

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Solution

The fourth proportional to 7,794.48, 11,691.37 and 2,863.76 is: 4,295.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,794.48 : 11,691.37 = 2,863.76 : x
  2. Step 2: Convert to fraction form
    7,794.48/11,691.37 = 2,863.76/x
  3. Step 3: Cross multiply
    7,794.48x = 11,691.37 × 2,863.76
  4. Step 4: Simplify right side
    7,794.48x = 33,481,212.13
  5. Step 5: Solve for x
    x = 33,481,212.13/7,794.48
  6. Step 6: Final answer
    x = 4,295.50

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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.