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Finding the Third Proportional to 1,393.50 and 1,996.13

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Solution

The third proportional to 1,393.50 and 1,996.13 is: 2,859.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.50 : 1,996.13 = 1,996.13 : x
  2. Step 2: Convert to fraction form
    1,393.50/1,996.13 = 1,996.13/x
  3. Step 3: Cross multiply
    1,393.50x = 1,996.13 × 1,996.13
  4. Step 4: Simplify right side
    1,393.50x = 3,984,515.02
  5. Step 5: Solve for x
    x = 3,984,515.02/1,393.50
  6. Step 6: Final answer
    x = 2,859.36

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.