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Finding the Fourth Proportional to 31,951.05, 44,115.90 and 20,627.14

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Solution

The fourth proportional to 31,951.05, 44,115.90 and 20,627.14 is: 28,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,951.05 : 44,115.90 = 20,627.14 : x
  2. Step 2: Convert to fraction form
    31,951.05/44,115.90 = 20,627.14/x
  3. Step 3: Cross multiply
    31,951.05x = 44,115.90 × 20,627.14
  4. Step 4: Simplify right side
    31,951.05x = 909,984,845.53
  5. Step 5: Solve for x
    x = 909,984,845.53/31,951.05
  6. Step 6: Final answer
    x = 28,480.59

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1.5x scale

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.