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Finding the Third Proportional to 1,361.25 and 2,945.25

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Solution

The third proportional to 1,361.25 and 2,945.25 is: 6,372.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.25 : 2,945.25 = 2,945.25 : x
  2. Step 2: Convert to fraction form
    1,361.25/2,945.25 = 2,945.25/x
  3. Step 3: Cross multiply
    1,361.25x = 2,945.25 × 2,945.25
  4. Step 4: Simplify right side
    1,361.25x = 8,674,497.56
  5. Step 5: Solve for x
    x = 8,674,497.56/1,361.25
  6. Step 6: Final answer
    x = 6,372.45

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.