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Finding the Third Proportional to 3 and 4.69

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Solution

The third proportional to 3 and 4.69 is: 7.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3 : 4.69 = 4.69 : x
  2. Step 2: Convert to fraction form
    3/4.69 = 4.69/x
  3. Step 3: Cross multiply
    3x = 4.69 × 4.69
  4. Step 4: Simplify right side
    3x = 21.97
  5. Step 5: Solve for x
    x = 21.97/3
  6. Step 6: Final answer
    x = 7.32

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.