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Finding the Third Proportional to 4,007 and 8,716

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Solution

The third proportional to 4,007 and 8,716 is: 18,958.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,007 : 8,716 = 8,716 : x
  2. Step 2: Convert to fraction form
    4,007/8,716 = 8,716/x
  3. Step 3: Cross multiply
    4,007x = 8,716 × 8,716
  4. Step 4: Simplify right side
    4,007x = 75,968,656
  5. Step 5: Solve for x
    x = 75,968,656/4,007
  6. Step 6: Final answer
    x = 18,958.99

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.