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Finding the Third Proportional to 4,416 and 8,719

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Solution

The third proportional to 4,416 and 8,719 is: 17,214.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,416 : 8,719 = 8,719 : x
  2. Step 2: Convert to fraction form
    4,416/8,719 = 8,719/x
  3. Step 3: Cross multiply
    4,416x = 8,719 × 8,719
  4. Step 4: Simplify right side
    4,416x = 76,020,961
  5. Step 5: Solve for x
    x = 76,020,961/4,416
  6. Step 6: Final answer
    x = 17,214.89

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.