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Finding the Fourth Proportional to 16.16, 22.26 and 14.62

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Solution

The fourth proportional to 16.16, 22.26 and 14.62 is: 20.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.16 : 22.26 = 14.62 : x
  2. Step 2: Convert to fraction form
    16.16/22.26 = 14.62/x
  3. Step 3: Cross multiply
    16.16x = 22.26 × 14.62
  4. Step 4: Simplify right side
    16.16x = 325.44
  5. Step 5: Solve for x
    x = 325.44/16.16
  6. Step 6: Final answer
    x = 20.14

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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.