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Finding the Fourth Proportional to 16.14, 22.28 and 9.59

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Solution

The fourth proportional to 16.14, 22.28 and 9.59 is: 13.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.14 : 22.28 = 9.59 : x
  2. Step 2: Convert to fraction form
    16.14/22.28 = 9.59/x
  3. Step 3: Cross multiply
    16.14x = 22.28 × 9.59
  4. Step 4: Simplify right side
    16.14x = 213.51
  5. Step 5: Solve for x
    x = 213.51/16.14
  6. Step 6: Final answer
    x = 13.23

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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.