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Finding the Fourth Proportional to 31,617.42, 43,630.11 and 17,469.42

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Solution

The fourth proportional to 31,617.42, 43,630.11 and 17,469.42 is: 24,106.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,617.42 : 43,630.11 = 17,469.42 : x
  2. Step 2: Convert to fraction form
    31,617.42/43,630.11 = 17,469.42/x
  3. Step 3: Cross multiply
    31,617.42x = 43,630.11 × 17,469.42
  4. Step 4: Simplify right side
    31,617.42x = 762,192,716.24
  5. Step 5: Solve for x
    x = 762,192,716.24/31,617.42
  6. Step 6: Final answer
    x = 24,106.73

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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.