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Finding the Third Proportional to 35,489 and 49,345

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Solution

The third proportional to 35,489 and 49,345 is: 68,610.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,489 : 49,345 = 49,345 : x
  2. Step 2: Convert to fraction form
    35,489/49,345 = 49,345/x
  3. Step 3: Cross multiply
    35,489x = 49,345 × 49,345
  4. Step 4: Simplify right side
    35,489x = 2,434,929,025
  5. Step 5: Solve for x
    x = 2,434,929,025/35,489
  6. Step 6: Final answer
    x = 68,610.81

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.