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Finding the Fourth Proportional to 15,163.92, 22,738.92 and 6,394.02

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Solution

The fourth proportional to 15,163.92, 22,738.92 and 6,394.02 is: 9,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163.92 : 22,738.92 = 6,394.02 : x
  2. Step 2: Convert to fraction form
    15,163.92/22,738.92 = 6,394.02/x
  3. Step 3: Cross multiply
    15,163.92x = 22,738.92 × 6,394.02
  4. Step 4: Simplify right side
    15,163.92x = 145,393,109.26
  5. Step 5: Solve for x
    x = 145,393,109.26/15,163.92
  6. Step 6: Final answer
    x = 9,588.10

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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.