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Finding the Fourth Proportional to 9.44, 14.16 and 5.43

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Solution

The fourth proportional to 9.44, 14.16 and 5.43 is: 8.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.44 : 14.16 = 5.43 : x
  2. Step 2: Convert to fraction form
    9.44/14.16 = 5.43/x
  3. Step 3: Cross multiply
    9.44x = 14.16 × 5.43
  4. Step 4: Simplify right side
    9.44x = 76.89
  5. Step 5: Solve for x
    x = 76.89/9.44
  6. Step 6: Final answer
    x = 8.15

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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.