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Finding the Fourth Proportional to 16.63, 24.94 and 8.50

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Solution

The fourth proportional to 16.63, 24.94 and 8.50 is: 12.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.63 : 24.94 = 8.50 : x
  2. Step 2: Convert to fraction form
    16.63/24.94 = 8.50/x
  3. Step 3: Cross multiply
    16.63x = 24.94 × 8.50
  4. Step 4: Simplify right side
    16.63x = 211.97
  5. Step 5: Solve for x
    x = 211.97/16.63
  6. Step 6: Final answer
    x = 12.75

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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.