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Finding the Fourth Proportional to 29,911.71, 41,279.10 and 17,167.22

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Solution

The fourth proportional to 29,911.71, 41,279.10 and 17,167.22 is: 23,691.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,911.71 : 41,279.10 = 17,167.22 : x
  2. Step 2: Convert to fraction form
    29,911.71/41,279.10 = 17,167.22/x
  3. Step 3: Cross multiply
    29,911.71x = 41,279.10 × 17,167.22
  4. Step 4: Simplify right side
    29,911.71x = 708,647,371.69
  5. Step 5: Solve for x
    x = 708,647,371.69/29,911.71
  6. Step 6: Final answer
    x = 23,691.30

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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.