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Finding the Fourth Proportional to 16.43, 22.62 and 14.48

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Solution

The fourth proportional to 16.43, 22.62 and 14.48 is: 19.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.43 : 22.62 = 14.48 : x
  2. Step 2: Convert to fraction form
    16.43/22.62 = 14.48/x
  3. Step 3: Cross multiply
    16.43x = 22.62 × 14.48
  4. Step 4: Simplify right side
    16.43x = 327.42
  5. Step 5: Solve for x
    x = 327.42/16.43
  6. Step 6: Final answer
    x = 19.93

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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.