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Finding the Third Proportional to 293.50 and 641

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Solution

The third proportional to 293.50 and 641 is: 1,399.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.50 : 641 = 641 : x
  2. Step 2: Convert to fraction form
    293.50/641 = 641/x
  3. Step 3: Cross multiply
    293.50x = 641 × 641
  4. Step 4: Simplify right side
    293.50x = 410,881
  5. Step 5: Solve for x
    x = 410,881/293.50
  6. Step 6: Final answer
    x = 1,399.94

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.