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Finding the Fourth Proportional to 7.95, 10.94 and 6.74

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Solution

The fourth proportional to 7.95, 10.94 and 6.74 is: 9.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.95 : 10.94 = 6.74 : x
  2. Step 2: Convert to fraction form
    7.95/10.94 = 6.74/x
  3. Step 3: Cross multiply
    7.95x = 10.94 × 6.74
  4. Step 4: Simplify right side
    7.95x = 73.65
  5. Step 5: Solve for x
    x = 73.65/7.95
  6. Step 6: Final answer
    x = 9.26

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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.