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Finding the Fourth Proportional to 16.44, 24.65 and 11.40

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Solution

The fourth proportional to 16.44, 24.65 and 11.40 is: 17.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.44 : 24.65 = 11.40 : x
  2. Step 2: Convert to fraction form
    16.44/24.65 = 11.40/x
  3. Step 3: Cross multiply
    16.44x = 24.65 × 11.40
  4. Step 4: Simplify right side
    16.44x = 281.01
  5. Step 5: Solve for x
    x = 281.01/16.44
  6. Step 6: Final answer
    x = 17.09

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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.