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Finding the Fourth Proportional to 9.44, 14.16 and 3.43

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Solution

The fourth proportional to 9.44, 14.16 and 3.43 is: 5.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.44 : 14.16 = 3.43 : x
  2. Step 2: Convert to fraction form
    9.44/14.16 = 3.43/x
  3. Step 3: Cross multiply
    9.44x = 14.16 × 3.43
  4. Step 4: Simplify right side
    9.44x = 48.57
  5. Step 5: Solve for x
    x = 48.57/9.44
  6. Step 6: Final answer
    x = 5.15

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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.