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Finding the Fourth Proportional to 16.33, 22.44 and 13.25

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Solution

The fourth proportional to 16.33, 22.44 and 13.25 is: 18.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.33 : 22.44 = 13.25 : x
  2. Step 2: Convert to fraction form
    16.33/22.44 = 13.25/x
  3. Step 3: Cross multiply
    16.33x = 22.44 × 13.25
  4. Step 4: Simplify right side
    16.33x = 297.34
  5. Step 5: Solve for x
    x = 297.34/16.33
  6. Step 6: Final answer
    x = 18.21

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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.