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Finding the Fourth Proportional to 29.11, 43.68 and 22.36

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Solution

The fourth proportional to 29.11, 43.68 and 22.36 is: 33.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.11 : 43.68 = 22.36 : x
  2. Step 2: Convert to fraction form
    29.11/43.68 = 22.36/x
  3. Step 3: Cross multiply
    29.11x = 43.68 × 22.36
  4. Step 4: Simplify right side
    29.11x = 976.68
  5. Step 5: Solve for x
    x = 976.68/29.11
  6. Step 6: Final answer
    x = 33.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.