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Finding the Third Proportional to 1,361.81 and 3,062.81

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Solution

The third proportional to 1,361.81 and 3,062.81 is: 6,888.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.81 : 3,062.81 = 3,062.81 : x
  2. Step 2: Convert to fraction form
    1,361.81/3,062.81 = 3,062.81/x
  3. Step 3: Cross multiply
    1,361.81x = 3,062.81 × 3,062.81
  4. Step 4: Simplify right side
    1,361.81x = 9,380,820.41
  5. Step 5: Solve for x
    x = 9,380,820.41/1,361.81
  6. Step 6: Final answer
    x = 6,888.48

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Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.