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Finding the Fourth Proportional to 31,209.96, 43,069.80 and 17,062.80

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Solution

The fourth proportional to 31,209.96, 43,069.80 and 17,062.80 is: 23,546.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,209.96 : 43,069.80 = 17,062.80 : x
  2. Step 2: Convert to fraction form
    31,209.96/43,069.80 = 17,062.80/x
  3. Step 3: Cross multiply
    31,209.96x = 43,069.80 × 17,062.80
  4. Step 4: Simplify right side
    31,209.96x = 734,891,383.44
  5. Step 5: Solve for x
    x = 734,891,383.44/31,209.96
  6. Step 6: Final answer
    x = 23,546.69

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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.