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Finding the Third Proportional to 1,512.11 and 3,368.78

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Solution

The third proportional to 1,512.11 and 3,368.78 is: 7,505.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.11 : 3,368.78 = 3,368.78 : x
  2. Step 2: Convert to fraction form
    1,512.11/3,368.78 = 3,368.78/x
  3. Step 3: Cross multiply
    1,512.11x = 3,368.78 × 3,368.78
  4. Step 4: Simplify right side
    1,512.11x = 11,348,660.79
  5. Step 5: Solve for x
    x = 11,348,660.79/1,512.11
  6. Step 6: Final answer
    x = 7,505.20

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.