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Finding the Fourth Proportional to 31,990.38, 44,144.71 and 17,650.38

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Solution

The fourth proportional to 31,990.38, 44,144.71 and 17,650.38 is: 24,356.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,990.38 : 44,144.71 = 17,650.38 : x
  2. Step 2: Convert to fraction form
    31,990.38/44,144.71 = 17,650.38/x
  3. Step 3: Cross multiply
    31,990.38x = 44,144.71 × 17,650.38
  4. Step 4: Simplify right side
    31,990.38x = 779,170,906.49
  5. Step 5: Solve for x
    x = 779,170,906.49/31,990.38
  6. Step 6: Final answer
    x = 24,356.41

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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.