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Finding the Fourth Proportional to 9.55, 14.41 and 9.49

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Solution

The fourth proportional to 9.55, 14.41 and 9.49 is: 14.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.55 : 14.41 = 9.49 : x
  2. Step 2: Convert to fraction form
    9.55/14.41 = 9.49/x
  3. Step 3: Cross multiply
    9.55x = 14.41 × 9.49
  4. Step 4: Simplify right side
    9.55x = 136.75
  5. Step 5: Solve for x
    x = 136.75/9.55
  6. Step 6: Final answer
    x = 14.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.