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Finding the Fourth Proportional to 11.63, 16.04 and 9.32

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Solution

The fourth proportional to 11.63, 16.04 and 9.32 is: 12.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.63 : 16.04 = 9.32 : x
  2. Step 2: Convert to fraction form
    11.63/16.04 = 9.32/x
  3. Step 3: Cross multiply
    11.63x = 16.04 × 9.32
  4. Step 4: Simplify right side
    11.63x = 149.44
  5. Step 5: Solve for x
    x = 149.44/11.63
  6. Step 6: Final answer
    x = 12.85

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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.