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Finding the Fourth Proportional to 16.94, 25.42 and 4.92

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Solution

The fourth proportional to 16.94, 25.42 and 4.92 is: 7.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.94 : 25.42 = 4.92 : x
  2. Step 2: Convert to fraction form
    16.94/25.42 = 4.92/x
  3. Step 3: Cross multiply
    16.94x = 25.42 × 4.92
  4. Step 4: Simplify right side
    16.94x = 125.05
  5. Step 5: Solve for x
    x = 125.05/16.94
  6. Step 6: Final answer
    x = 7.38

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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.