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Finding the Fourth Proportional to 31,616.82, 43,629.03 and 17,470.71

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Solution

The fourth proportional to 31,616.82, 43,629.03 and 17,470.71 is: 24,108.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,616.82 : 43,629.03 = 17,470.71 : x
  2. Step 2: Convert to fraction form
    31,616.82/43,629.03 = 17,470.71/x
  3. Step 3: Cross multiply
    31,616.82x = 43,629.03 × 17,470.71
  4. Step 4: Simplify right side
    31,616.82x = 762,230,130.71
  5. Step 5: Solve for x
    x = 762,230,130.71/31,616.82
  6. Step 6: Final answer
    x = 24,108.37

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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.