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Finding the Fourth Proportional to 22.95, 34.42 and 7.73

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Solution

The fourth proportional to 22.95, 34.42 and 7.73 is: 11.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.95 : 34.42 = 7.73 : x
  2. Step 2: Convert to fraction form
    22.95/34.42 = 7.73/x
  3. Step 3: Cross multiply
    22.95x = 34.42 × 7.73
  4. Step 4: Simplify right side
    22.95x = 266.07
  5. Step 5: Solve for x
    x = 266.07/22.95
  6. Step 6: Final answer
    x = 11.59

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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.