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Finding the Fourth Proportional to 23.18, 34.49 and 22.95

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Solution

The fourth proportional to 23.18, 34.49 and 22.95 is: 34.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.18 : 34.49 = 22.95 : x
  2. Step 2: Convert to fraction form
    23.18/34.49 = 22.95/x
  3. Step 3: Cross multiply
    23.18x = 34.49 × 22.95
  4. Step 4: Simplify right side
    23.18x = 791.60
  5. Step 5: Solve for x
    x = 791.60/23.18
  6. Step 6: Final answer
    x = 34.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.