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Finding the Fourth Proportional to 16.46, 22.73 and 11.00

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Solution

The fourth proportional to 16.46, 22.73 and 11.00 is: 15.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.46 : 22.73 = 11.00 : x
  2. Step 2: Convert to fraction form
    16.46/22.73 = 11.00/x
  3. Step 3: Cross multiply
    16.46x = 22.73 × 11.00
  4. Step 4: Simplify right side
    16.46x = 249.86
  5. Step 5: Solve for x
    x = 249.86/16.46
  6. Step 6: Final answer
    x = 15.18

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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.