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Finding the Fourth Proportional to 29,290.39, 40,418.17 and 17,351.71

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Solution

The fourth proportional to 29,290.39, 40,418.17 and 17,351.71 is: 23,943.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,290.39 : 40,418.17 = 17,351.71 : x
  2. Step 2: Convert to fraction form
    29,290.39/40,418.17 = 17,351.71/x
  3. Step 3: Cross multiply
    29,290.39x = 40,418.17 × 17,351.71
  4. Step 4: Simplify right side
    29,290.39x = 701,324,364.57
  5. Step 5: Solve for x
    x = 701,324,364.57/29,290.39
  6. Step 6: Final answer
    x = 23,943.84

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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.