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Finding the Fourth Proportional to 7.95, 11.86 and 7.44

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Solution

The fourth proportional to 7.95, 11.86 and 7.44 is: 11.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.95 : 11.86 = 7.44 : x
  2. Step 2: Convert to fraction form
    7.95/11.86 = 7.44/x
  3. Step 3: Cross multiply
    7.95x = 11.86 × 7.44
  4. Step 4: Simplify right side
    7.95x = 88.24
  5. Step 5: Solve for x
    x = 88.24/7.95
  6. Step 6: Final answer
    x = 11.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.