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Finding the Third Proportional to 40,368 and 62,721

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Solution

The third proportional to 40,368 and 62,721 is: 97,451.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,368 : 62,721 = 62,721 : x
  2. Step 2: Convert to fraction form
    40,368/62,721 = 62,721/x
  3. Step 3: Cross multiply
    40,368x = 62,721 × 62,721
  4. Step 4: Simplify right side
    40,368x = 3,933,923,841
  5. Step 5: Solve for x
    x = 3,933,923,841/40,368
  6. Step 6: Final answer
    x = 97,451.54

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.