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Finding the Third Proportional to 6,987 and 8,202

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Solution

The third proportional to 6,987 and 8,202 is: 9,628.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987 : 8,202 = 8,202 : x
  2. Step 2: Convert to fraction form
    6,987/8,202 = 8,202/x
  3. Step 3: Cross multiply
    6,987x = 8,202 × 8,202
  4. Step 4: Simplify right side
    6,987x = 67,272,804
  5. Step 5: Solve for x
    x = 67,272,804/6,987
  6. Step 6: Final answer
    x = 9,628.28

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