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Finding the Fourth Proportional to 7.94, 10.95 and 6

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Solution

The fourth proportional to 7.94, 10.95 and 6 is: 8.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.94 : 10.95 = 6 : x
  2. Step 2: Convert to fraction form
    7.94/10.95 = 6/x
  3. Step 3: Cross multiply
    7.94x = 10.95 × 6
  4. Step 4: Simplify right side
    7.94x = 65.72
  5. Step 5: Solve for x
    x = 65.72/7.94
  6. Step 6: Final answer
    x = 8.28

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Why These Related Problems?

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