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Finding the Third Proportional to 62,401 and 84,678

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Solution

The third proportional to 62,401 and 84,678 is: 114,907.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,401 : 84,678 = 84,678 : x
  2. Step 2: Convert to fraction form
    62,401/84,678 = 84,678/x
  3. Step 3: Cross multiply
    62,401x = 84,678 × 84,678
  4. Step 4: Simplify right side
    62,401x = 7,170,363,684
  5. Step 5: Solve for x
    x = 7,170,363,684/62,401
  6. Step 6: Final answer
    x = 114,907.83

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.