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Finding the Third Proportional to 820.50 and 951

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Solution

The third proportional to 820.50 and 951 is: 1,102.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    820.50 : 951 = 951 : x
  2. Step 2: Convert to fraction form
    820.50/951 = 951/x
  3. Step 3: Cross multiply
    820.50x = 951 × 951
  4. Step 4: Simplify right side
    820.50x = 904,401
  5. Step 5: Solve for x
    x = 904,401/820.50
  6. Step 6: Final answer
    x = 1,102.26

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Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.