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Finding the Third Proportional to 451.50 and 726

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Solution

The third proportional to 451.50 and 726 is: 1,167.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.50 : 726 = 726 : x
  2. Step 2: Convert to fraction form
    451.50/726 = 726/x
  3. Step 3: Cross multiply
    451.50x = 726 × 726
  4. Step 4: Simplify right side
    451.50x = 527,076
  5. Step 5: Solve for x
    x = 527,076/451.50
  6. Step 6: Final answer
    x = 1,167.39

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.