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Finding the Fourth Proportional to 25.24, 34.82 and 22

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Solution

The fourth proportional to 25.24, 34.82 and 22 is: 30.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.24 : 34.82 = 22 : x
  2. Step 2: Convert to fraction form
    25.24/34.82 = 22/x
  3. Step 3: Cross multiply
    25.24x = 34.82 × 22
  4. Step 4: Simplify right side
    25.24x = 766.04
  5. Step 5: Solve for x
    x = 766.04/25.24
  6. Step 6: Final answer
    x = 30.35

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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.