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Finding the Fourth Proportional to 24.90, 34.33 and 22

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Solution

The fourth proportional to 24.90, 34.33 and 22 is: 30.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.90 : 34.33 = 22 : x
  2. Step 2: Convert to fraction form
    24.90/34.33 = 22/x
  3. Step 3: Cross multiply
    24.90x = 34.33 × 22
  4. Step 4: Simplify right side
    24.90x = 755.26
  5. Step 5: Solve for x
    x = 755.26/24.90
  6. Step 6: Final answer
    x = 30.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.