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Finding the Fourth Proportional to 7.95, 10.96 and 7.43

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Solution

The fourth proportional to 7.95, 10.96 and 7.43 is: 10.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.95 : 10.96 = 7.43 : x
  2. Step 2: Convert to fraction form
    7.95/10.96 = 7.43/x
  3. Step 3: Cross multiply
    7.95x = 10.96 × 7.43
  4. Step 4: Simplify right side
    7.95x = 81.43
  5. Step 5: Solve for x
    x = 81.43/7.95
  6. Step 6: Final answer
    x = 10.24

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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.