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Finding the Third Proportional to 997.50 and 1,505.25

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Solution

The third proportional to 997.50 and 1,505.25 is: 2,271.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    997.50 : 1,505.25 = 1,505.25 : x
  2. Step 2: Convert to fraction form
    997.50/1,505.25 = 1,505.25/x
  3. Step 3: Cross multiply
    997.50x = 1,505.25 × 1,505.25
  4. Step 4: Simplify right side
    997.50x = 2,265,777.56
  5. Step 5: Solve for x
    x = 2,265,777.56/997.50
  6. Step 6: Final answer
    x = 2,271.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.