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Finding the Fourth Proportional to 16.44, 22.69 and 10.31

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Solution

The fourth proportional to 16.44, 22.69 and 10.31 is: 14.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.44 : 22.69 = 10.31 : x
  2. Step 2: Convert to fraction form
    16.44/22.69 = 10.31/x
  3. Step 3: Cross multiply
    16.44x = 22.69 × 10.31
  4. Step 4: Simplify right side
    16.44x = 233.82
  5. Step 5: Solve for x
    x = 233.82/16.44
  6. Step 6: Final answer
    x = 14.22

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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.