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Finding the Third Proportional to 3,372.89 and 7,877.67

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Solution

The third proportional to 3,372.89 and 7,877.67 is: 18,398.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,372.89 : 7,877.67 = 7,877.67 : x
  2. Step 2: Convert to fraction form
    3,372.89/7,877.67 = 7,877.67/x
  3. Step 3: Cross multiply
    3,372.89x = 7,877.67 × 7,877.67
  4. Step 4: Simplify right side
    3,372.89x = 62,057,714.17
  5. Step 5: Solve for x
    x = 62,057,714.17/3,372.89
  6. Step 6: Final answer
    x = 18,398.97

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.