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Finding the Third Proportional to 326 and 506.50

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Solution

The third proportional to 326 and 506.50 is: 786.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    326 : 506.50 = 506.50 : x
  2. Step 2: Convert to fraction form
    326/506.50 = 506.50/x
  3. Step 3: Cross multiply
    326x = 506.50 × 506.50
  4. Step 4: Simplify right side
    326x = 256,542.25
  5. Step 5: Solve for x
    x = 256,542.25/326
  6. Step 6: Final answer
    x = 786.94

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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.