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Finding the Fourth Proportional to 63,138.70, 94,708.19 and 25,672.33

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Solution

The fourth proportional to 63,138.70, 94,708.19 and 25,672.33 is: 38,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,138.70 : 94,708.19 = 25,672.33 : x
  2. Step 2: Convert to fraction form
    63,138.70/94,708.19 = 25,672.33/x
  3. Step 3: Cross multiply
    63,138.70x = 94,708.19 × 25,672.33
  4. Step 4: Simplify right side
    63,138.70x = 2,431,379,907.38
  5. Step 5: Solve for x
    x = 2,431,379,907.38/63,138.70
  6. Step 6: Final answer
    x = 38,508.55

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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.