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Finding the Fourth Proportional to 16.41, 24.62 and 7.40

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Solution

The fourth proportional to 16.41, 24.62 and 7.40 is: 11.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.41 : 24.62 = 7.40 : x
  2. Step 2: Convert to fraction form
    16.41/24.62 = 7.40/x
  3. Step 3: Cross multiply
    16.41x = 24.62 × 7.40
  4. Step 4: Simplify right side
    16.41x = 182.03
  5. Step 5: Solve for x
    x = 182.03/16.41
  6. Step 6: Final answer
    x = 11.09

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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.