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Finding the Fourth Proportional to 22.74, 34.38 and 22.53

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Solution

The fourth proportional to 22.74, 34.38 and 22.53 is: 34.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.74 : 34.38 = 22.53 : x
  2. Step 2: Convert to fraction form
    22.74/34.38 = 22.53/x
  3. Step 3: Cross multiply
    22.74x = 34.38 × 22.53
  4. Step 4: Simplify right side
    22.74x = 774.58
  5. Step 5: Solve for x
    x = 774.58/22.74
  6. Step 6: Final answer
    x = 34.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.