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Finding the Fourth Proportional to 7.02, 9.67 and 5.92

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Solution

The fourth proportional to 7.02, 9.67 and 5.92 is: 8.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.02 : 9.67 = 5.92 : x
  2. Step 2: Convert to fraction form
    7.02/9.67 = 5.92/x
  3. Step 3: Cross multiply
    7.02x = 9.67 × 5.92
  4. Step 4: Simplify right side
    7.02x = 57.25
  5. Step 5: Solve for x
    x = 57.25/7.02
  6. Step 6: Final answer
    x = 8.15

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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.