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Finding the Fourth Proportional to 23.43, 35.16 and 11.42

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Solution

The fourth proportional to 23.43, 35.16 and 11.42 is: 17.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.43 : 35.16 = 11.42 : x
  2. Step 2: Convert to fraction form
    23.43/35.16 = 11.42/x
  3. Step 3: Cross multiply
    23.43x = 35.16 × 11.42
  4. Step 4: Simplify right side
    23.43x = 401.53
  5. Step 5: Solve for x
    x = 401.53/23.43
  6. Step 6: Final answer
    x = 17.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.