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Finding the Fourth Proportional to 15,163.88, 22,748.26 and 6,400.10

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Solution

The fourth proportional to 15,163.88, 22,748.26 and 6,400.10 is: 9,601.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163.88 : 22,748.26 = 6,400.10 : x
  2. Step 2: Convert to fraction form
    15,163.88/22,748.26 = 6,400.10/x
  3. Step 3: Cross multiply
    15,163.88x = 22,748.26 × 6,400.10
  4. Step 4: Simplify right side
    15,163.88x = 145,591,138.83
  5. Step 5: Solve for x
    x = 145,591,138.83/15,163.88
  6. Step 6: Final answer
    x = 9,601.18

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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.