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Finding the Fourth Proportional to 16.74, 22.94 and 16.11

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Solution

The fourth proportional to 16.74, 22.94 and 16.11 is: 22.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.74 : 22.94 = 16.11 : x
  2. Step 2: Convert to fraction form
    16.74/22.94 = 16.11/x
  3. Step 3: Cross multiply
    16.74x = 22.94 × 16.11
  4. Step 4: Simplify right side
    16.74x = 369.54
  5. Step 5: Solve for x
    x = 369.54/16.74
  6. Step 6: Final answer
    x = 22.08

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.