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Finding the Third Proportional to 4 and 4.69

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Solution

The third proportional to 4 and 4.69 is: 5.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4 : 4.69 = 4.69 : x
  2. Step 2: Convert to fraction form
    4/4.69 = 4.69/x
  3. Step 3: Cross multiply
    4x = 4.69 × 4.69
  4. Step 4: Simplify right side
    4x = 21.97
  5. Step 5: Solve for x
    x = 21.97/4
  6. Step 6: Final answer
    x = 5.49

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.