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Finding the Fourth Proportional to 7,751.92, 10,691.04 and 5,233.36

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Solution

The fourth proportional to 7,751.92, 10,691.04 and 5,233.36 is: 7,217.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.92 : 10,691.04 = 5,233.36 : x
  2. Step 2: Convert to fraction form
    7,751.92/10,691.04 = 5,233.36/x
  3. Step 3: Cross multiply
    7,751.92x = 10,691.04 × 5,233.36
  4. Step 4: Simplify right side
    7,751.92x = 55,950,061.09
  5. Step 5: Solve for x
    x = 55,950,061.09/7,751.92
  6. Step 6: Final answer
    x = 7,217.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.