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Finding the Fourth Proportional to 22.98, 34.48 and 11.56

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Solution

The fourth proportional to 22.98, 34.48 and 11.56 is: 17.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.98 : 34.48 = 11.56 : x
  2. Step 2: Convert to fraction form
    22.98/34.48 = 11.56/x
  3. Step 3: Cross multiply
    22.98x = 34.48 × 11.56
  4. Step 4: Simplify right side
    22.98x = 398.53
  5. Step 5: Solve for x
    x = 398.53/22.98
  6. Step 6: Final answer
    x = 17.35

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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.