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Finding the Fourth Proportional to 6.96, 10.45 and 5.27

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Solution

The fourth proportional to 6.96, 10.45 and 5.27 is: 7.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.96 : 10.45 = 5.27 : x
  2. Step 2: Convert to fraction form
    6.96/10.45 = 5.27/x
  3. Step 3: Cross multiply
    6.96x = 10.45 × 5.27
  4. Step 4: Simplify right side
    6.96x = 55.07
  5. Step 5: Solve for x
    x = 55.07/6.96
  6. Step 6: Final answer
    x = 7.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.