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Finding the Fourth Proportional to 16.32, 22.53 and 11.14

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Solution

The fourth proportional to 16.32, 22.53 and 11.14 is: 15.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.32 : 22.53 = 11.14 : x
  2. Step 2: Convert to fraction form
    16.32/22.53 = 11.14/x
  3. Step 3: Cross multiply
    16.32x = 22.53 × 11.14
  4. Step 4: Simplify right side
    16.32x = 251.03
  5. Step 5: Solve for x
    x = 251.03/16.32
  6. Step 6: Final answer
    x = 15.38

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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.