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Finding the Fourth Proportional to 22, 33.01 and 12.37

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Solution

The fourth proportional to 22, 33.01 and 12.37 is: 18.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22 : 33.01 = 12.37 : x
  2. Step 2: Convert to fraction form
    22/33.01 = 12.37/x
  3. Step 3: Cross multiply
    22x = 33.01 × 12.37
  4. Step 4: Simplify right side
    22x = 408.33
  5. Step 5: Solve for x
    x = 408.33/22
  6. Step 6: Final answer
    x = 18.56

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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.