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Finding the Fourth Proportional to 22.95, 34.48 and 19.73

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Solution

The fourth proportional to 22.95, 34.48 and 19.73 is: 29.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.95 : 34.48 = 19.73 : x
  2. Step 2: Convert to fraction form
    22.95/34.48 = 19.73/x
  3. Step 3: Cross multiply
    22.95x = 34.48 × 19.73
  4. Step 4: Simplify right side
    22.95x = 680.29
  5. Step 5: Solve for x
    x = 680.29/22.95
  6. Step 6: Final answer
    x = 29.64

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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.