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Finding the Fourth Proportional to 7,908.57, 11,849.22 and 5,132.03

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Solution

The fourth proportional to 7,908.57, 11,849.22 and 5,132.03 is: 7,689.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.57 : 11,849.22 = 5,132.03 : x
  2. Step 2: Convert to fraction form
    7,908.57/11,849.22 = 5,132.03/x
  3. Step 3: Cross multiply
    7,908.57x = 11,849.22 × 5,132.03
  4. Step 4: Simplify right side
    7,908.57x = 60,810,493.27
  5. Step 5: Solve for x
    x = 60,810,493.27/7,908.57
  6. Step 6: Final answer
    x = 7,689.19

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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.