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Finding the Fourth Proportional to 6.92, 9.56 and 5.86

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Solution

The fourth proportional to 6.92, 9.56 and 5.86 is: 8.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.92 : 9.56 = 5.86 : x
  2. Step 2: Convert to fraction form
    6.92/9.56 = 5.86/x
  3. Step 3: Cross multiply
    6.92x = 9.56 × 5.86
  4. Step 4: Simplify right side
    6.92x = 56.02
  5. Step 5: Solve for x
    x = 56.02/6.92
  6. Step 6: Final answer
    x = 8.10

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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.