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Finding the Third Proportional to 4,786 and 6,719

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Solution

The third proportional to 4,786 and 6,719 is: 9,432.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786 : 6,719 = 6,719 : x
  2. Step 2: Convert to fraction form
    4,786/6,719 = 6,719/x
  3. Step 3: Cross multiply
    4,786x = 6,719 × 6,719
  4. Step 4: Simplify right side
    4,786x = 45,144,961
  5. Step 5: Solve for x
    x = 45,144,961/4,786
  6. Step 6: Final answer
    x = 9,432.71

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.