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Finding the Third Proportional to 7,956 and 8,649

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Solution

The third proportional to 7,956 and 8,649 is: 9,402.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956 : 8,649 = 8,649 : x
  2. Step 2: Convert to fraction form
    7,956/8,649 = 8,649/x
  3. Step 3: Cross multiply
    7,956x = 8,649 × 8,649
  4. Step 4: Simplify right side
    7,956x = 74,805,201
  5. Step 5: Solve for x
    x = 74,805,201/7,956
  6. Step 6: Final answer
    x = 9,402.36

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.