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Finding the Fourth Proportional to 31,571.49, 43,568.49 and 17,425.20

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Solution

The fourth proportional to 31,571.49, 43,568.49 and 17,425.20 is: 24,046.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,571.49 : 43,568.49 = 17,425.20 : x
  2. Step 2: Convert to fraction form
    31,571.49/43,568.49 = 17,425.20/x
  3. Step 3: Cross multiply
    31,571.49x = 43,568.49 × 17,425.20
  4. Step 4: Simplify right side
    31,571.49x = 759,189,651.95
  5. Step 5: Solve for x
    x = 759,189,651.95/31,571.49
  6. Step 6: Final answer
    x = 24,046.68

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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.