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Finding the Third Proportional to 971.25 and 1,505.25

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Solution

The third proportional to 971.25 and 1,505.25 is: 2,332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    971.25 : 1,505.25 = 1,505.25 : x
  2. Step 2: Convert to fraction form
    971.25/1,505.25 = 1,505.25/x
  3. Step 3: Cross multiply
    971.25x = 1,505.25 × 1,505.25
  4. Step 4: Simplify right side
    971.25x = 2,265,777.56
  5. Step 5: Solve for x
    x = 2,265,777.56/971.25
  6. Step 6: Final answer
    x = 2,332.85

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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.