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Finding the Fourth Proportional to 49.33, 74.00 and 22.28

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Solution

The fourth proportional to 49.33, 74.00 and 22.28 is: 33.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.33 : 74.00 = 22.28 : x
  2. Step 2: Convert to fraction form
    49.33/74.00 = 22.28/x
  3. Step 3: Cross multiply
    49.33x = 74.00 × 22.28
  4. Step 4: Simplify right side
    49.33x = 1,648.28
  5. Step 5: Solve for x
    x = 1,648.28/49.33
  6. Step 6: Final answer
    x = 33.42

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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.