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Finding the Third Proportional to 6,216 and 8,716

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Solution

The third proportional to 6,216 and 8,716 is: 12,221.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216 : 8,716 = 8,716 : x
  2. Step 2: Convert to fraction form
    6,216/8,716 = 8,716/x
  3. Step 3: Cross multiply
    6,216x = 8,716 × 8,716
  4. Step 4: Simplify right side
    6,216x = 75,968,656
  5. Step 5: Solve for x
    x = 75,968,656/6,216
  6. Step 6: Final answer
    x = 12,221.47

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