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Finding the Fourth Proportional to 16.63, 22.95 and 11.77

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Solution

The fourth proportional to 16.63, 22.95 and 11.77 is: 16.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.63 : 22.95 = 11.77 : x
  2. Step 2: Convert to fraction form
    16.63/22.95 = 11.77/x
  3. Step 3: Cross multiply
    16.63x = 22.95 × 11.77
  4. Step 4: Simplify right side
    16.63x = 270.12
  5. Step 5: Solve for x
    x = 270.12/16.63
  6. Step 6: Final answer
    x = 16.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.