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Finding the Fourth Proportional to 25.11, 34.90 and 24.84

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Solution

The fourth proportional to 25.11, 34.90 and 24.84 is: 34.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.11 : 34.90 = 24.84 : x
  2. Step 2: Convert to fraction form
    25.11/34.90 = 24.84/x
  3. Step 3: Cross multiply
    25.11x = 34.90 × 24.84
  4. Step 4: Simplify right side
    25.11x = 866.85
  5. Step 5: Solve for x
    x = 866.85/25.11
  6. Step 6: Final answer
    x = 34.52

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.