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Finding the Fourth Proportional to 7,563.92, 11,352.92 and 3,868.79

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Solution

The fourth proportional to 7,563.92, 11,352.92 and 3,868.79 is: 5,806.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,563.92 : 11,352.92 = 3,868.79 : x
  2. Step 2: Convert to fraction form
    7,563.92/11,352.92 = 3,868.79/x
  3. Step 3: Cross multiply
    7,563.92x = 11,352.92 × 3,868.79
  4. Step 4: Simplify right side
    7,563.92x = 43,921,987.26
  5. Step 5: Solve for x
    x = 43,921,987.26/7,563.92
  6. Step 6: Final answer
    x = 5,806.78

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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.