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Finding the Third Proportional to 6,698 and 7,318

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Solution

The third proportional to 6,698 and 7,318 is: 7,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,698 : 7,318 = 7,318 : x
  2. Step 2: Convert to fraction form
    6,698/7,318 = 7,318/x
  3. Step 3: Cross multiply
    6,698x = 7,318 × 7,318
  4. Step 4: Simplify right side
    6,698x = 53,553,124
  5. Step 5: Solve for x
    x = 53,553,124/6,698
  6. Step 6: Final answer
    x = 7,995.39

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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.