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Finding the Fourth Proportional to 16.57, 24.86 and 6.95

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Solution

The fourth proportional to 16.57, 24.86 and 6.95 is: 10.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.57 : 24.86 = 6.95 : x
  2. Step 2: Convert to fraction form
    16.57/24.86 = 6.95/x
  3. Step 3: Cross multiply
    16.57x = 24.86 × 6.95
  4. Step 4: Simplify right side
    16.57x = 172.86
  5. Step 5: Solve for x
    x = 172.86/16.57
  6. Step 6: Final answer
    x = 10.43

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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.