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Finding the Fourth Proportional to 22.48, 33.49 and 22.39

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Solution

The fourth proportional to 22.48, 33.49 and 22.39 is: 33.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.48 : 33.49 = 22.39 : x
  2. Step 2: Convert to fraction form
    22.48/33.49 = 22.39/x
  3. Step 3: Cross multiply
    22.48x = 33.49 × 22.39
  4. Step 4: Simplify right side
    22.48x = 749.79
  5. Step 5: Solve for x
    x = 749.79/22.48
  6. Step 6: Final answer
    x = 33.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.