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Finding the Fourth Proportional to 33,108, 45,691.20 and 18,573.54

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Solution

The fourth proportional to 33,108, 45,691.20 and 18,573.54 is: 25,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,108 : 45,691.20 = 18,573.54 : x
  2. Step 2: Convert to fraction form
    33,108/45,691.20 = 18,573.54/x
  3. Step 3: Cross multiply
    33,108x = 45,691.20 × 18,573.54
  4. Step 4: Simplify right side
    33,108x = 848,647,330.85
  5. Step 5: Solve for x
    x = 848,647,330.85/33,108
  6. Step 6: Final answer
    x = 25,632.70

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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.