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Finding the Fourth Proportional to 14.11, 19.48 and 9.27

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Solution

The fourth proportional to 14.11, 19.48 and 9.27 is: 12.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.11 : 19.48 = 9.27 : x
  2. Step 2: Convert to fraction form
    14.11/19.48 = 9.27/x
  3. Step 3: Cross multiply
    14.11x = 19.48 × 9.27
  4. Step 4: Simplify right side
    14.11x = 180.58
  5. Step 5: Solve for x
    x = 180.58/14.11
  6. Step 6: Final answer
    x = 12.80

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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.