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Finding the Fourth Proportional to 11.85, 16.27 and 10.48

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Solution

The fourth proportional to 11.85, 16.27 and 10.48 is: 14.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.85 : 16.27 = 10.48 : x
  2. Step 2: Convert to fraction form
    11.85/16.27 = 10.48/x
  3. Step 3: Cross multiply
    11.85x = 16.27 × 10.48
  4. Step 4: Simplify right side
    11.85x = 170.51
  5. Step 5: Solve for x
    x = 170.51/11.85
  6. Step 6: Final answer
    x = 14.39

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.