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Finding the Fourth Proportional to 7,691.35, 11,550.08 and 7,296.79

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Solution

The fourth proportional to 7,691.35, 11,550.08 and 7,296.79 is: 10,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.35 : 11,550.08 = 7,296.79 : x
  2. Step 2: Convert to fraction form
    7,691.35/11,550.08 = 7,296.79/x
  3. Step 3: Cross multiply
    7,691.35x = 11,550.08 × 7,296.79
  4. Step 4: Simplify right side
    7,691.35x = 84,278,508.24
  5. Step 5: Solve for x
    x = 84,278,508.24/7,691.35
  6. Step 6: Final answer
    x = 10,957.57

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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.