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Finding the Fourth Proportional to 16.36, 22.54 and 11.98

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Solution

The fourth proportional to 16.36, 22.54 and 11.98 is: 16.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.36 : 22.54 = 11.98 : x
  2. Step 2: Convert to fraction form
    16.36/22.54 = 11.98/x
  3. Step 3: Cross multiply
    16.36x = 22.54 × 11.98
  4. Step 4: Simplify right side
    16.36x = 270.03
  5. Step 5: Solve for x
    x = 270.03/16.36
  6. Step 6: Final answer
    x = 16.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.