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Finding the Fourth Proportional to 22.38, 33.50 and 16.95

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Solution

The fourth proportional to 22.38, 33.50 and 16.95 is: 25.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.38 : 33.50 = 16.95 : x
  2. Step 2: Convert to fraction form
    22.38/33.50 = 16.95/x
  3. Step 3: Cross multiply
    22.38x = 33.50 × 16.95
  4. Step 4: Simplify right side
    22.38x = 567.74
  5. Step 5: Solve for x
    x = 567.74/22.38
  6. Step 6: Final answer
    x = 25.37

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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.