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Finding the Fourth Proportional to 10.94, 16.47 and 7.96

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Solution

The fourth proportional to 10.94, 16.47 and 7.96 is: 11.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.94 : 16.47 = 7.96 : x
  2. Step 2: Convert to fraction form
    10.94/16.47 = 7.96/x
  3. Step 3: Cross multiply
    10.94x = 16.47 × 7.96
  4. Step 4: Simplify right side
    10.94x = 131.02
  5. Step 5: Solve for x
    x = 131.02/10.94
  6. Step 6: Final answer
    x = 11.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.