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Finding the Fourth Proportional to 23.26, 34.92 and 19.46

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Solution

The fourth proportional to 23.26, 34.92 and 19.46 is: 29.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.26 : 34.92 = 19.46 : x
  2. Step 2: Convert to fraction form
    23.26/34.92 = 19.46/x
  3. Step 3: Cross multiply
    23.26x = 34.92 × 19.46
  4. Step 4: Simplify right side
    23.26x = 679.54
  5. Step 5: Solve for x
    x = 679.54/23.26
  6. Step 6: Final answer
    x = 29.22

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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.