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Finding the Fourth Proportional to 33,163.60, 49,761.60 and 15,630.40

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Solution

The fourth proportional to 33,163.60, 49,761.60 and 15,630.40 is: 23,453.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,163.60 : 49,761.60 = 15,630.40 : x
  2. Step 2: Convert to fraction form
    33,163.60/49,761.60 = 15,630.40/x
  3. Step 3: Cross multiply
    33,163.60x = 49,761.60 × 15,630.40
  4. Step 4: Simplify right side
    33,163.60x = 777,793,712.64
  5. Step 5: Solve for x
    x = 777,793,712.64/33,163.60
  6. Step 6: Final answer
    x = 23,453.24

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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.