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Finding the Fourth Proportional to 29,169.18, 40,239.18 and 17,229.78

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Solution

The fourth proportional to 29,169.18, 40,239.18 and 17,229.78 is: 23,768.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,169.18 : 40,239.18 = 17,229.78 : x
  2. Step 2: Convert to fraction form
    29,169.18/40,239.18 = 17,229.78/x
  3. Step 3: Cross multiply
    29,169.18x = 40,239.18 × 17,229.78
  4. Step 4: Simplify right side
    29,169.18x = 693,312,218.78
  5. Step 5: Solve for x
    x = 693,312,218.78/29,169.18
  6. Step 6: Final answer
    x = 23,768.66

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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.