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Finding the Fourth Proportional to 16.46, 24.72 and 11.66

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Solution

The fourth proportional to 16.46, 24.72 and 11.66 is: 17.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.46 : 24.72 = 11.66 : x
  2. Step 2: Convert to fraction form
    16.46/24.72 = 11.66/x
  3. Step 3: Cross multiply
    16.46x = 24.72 × 11.66
  4. Step 4: Simplify right side
    16.46x = 288.24
  5. Step 5: Solve for x
    x = 288.24/16.46
  6. Step 6: Final answer
    x = 17.51

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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.