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Finding the Third Proportional to 64,374 and 134,628

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Solution

The third proportional to 64,374 and 134,628 is: 281,553.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,374 : 134,628 = 134,628 : x
  2. Step 2: Convert to fraction form
    64,374/134,628 = 134,628/x
  3. Step 3: Cross multiply
    64,374x = 134,628 × 134,628
  4. Step 4: Simplify right side
    64,374x = 18,124,698,384
  5. Step 5: Solve for x
    x = 18,124,698,384/64,374
  6. Step 6: Final answer
    x = 281,553.09

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.