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Finding the Fourth Proportional to 11,163.17, 15,404.90 and 6,127.38

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Solution

The fourth proportional to 11,163.17, 15,404.90 and 6,127.38 is: 8,455.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.17 : 15,404.90 = 6,127.38 : x
  2. Step 2: Convert to fraction form
    11,163.17/15,404.90 = 6,127.38/x
  3. Step 3: Cross multiply
    11,163.17x = 15,404.90 × 6,127.38
  4. Step 4: Simplify right side
    11,163.17x = 94,391,645.53
  5. Step 5: Solve for x
    x = 94,391,645.53/11,163.17
  6. Step 6: Final answer
    x = 8,455.63

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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.