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Finding the Third Proportional to 329.50 and 713

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Solution

The third proportional to 329.50 and 713 is: 1,542.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.50 : 713 = 713 : x
  2. Step 2: Convert to fraction form
    329.50/713 = 713/x
  3. Step 3: Cross multiply
    329.50x = 713 × 713
  4. Step 4: Simplify right side
    329.50x = 508,369
  5. Step 5: Solve for x
    x = 508,369/329.50
  6. Step 6: Final answer
    x = 1,542.85

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.