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Finding the Fourth Proportional to 22.38, 33.54 and 10.94

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Solution

The fourth proportional to 22.38, 33.54 and 10.94 is: 16.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.38 : 33.54 = 10.94 : x
  2. Step 2: Convert to fraction form
    22.38/33.54 = 10.94/x
  3. Step 3: Cross multiply
    22.38x = 33.54 × 10.94
  4. Step 4: Simplify right side
    22.38x = 366.76
  5. Step 5: Solve for x
    x = 366.76/22.38
  6. Step 6: Final answer
    x = 16.39

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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.