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Finding the Fourth Proportional to 1,996.35, 2,754.96 and 1,112.23

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Solution

The fourth proportional to 1,996.35, 2,754.96 and 1,112.23 is: 1,534.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.35 : 2,754.96 = 1,112.23 : x
  2. Step 2: Convert to fraction form
    1,996.35/2,754.96 = 1,112.23/x
  3. Step 3: Cross multiply
    1,996.35x = 2,754.96 × 1,112.23
  4. Step 4: Simplify right side
    1,996.35x = 3,064,149.16
  5. Step 5: Solve for x
    x = 3,064,149.16/1,996.35
  6. Step 6: Final answer
    x = 1,534.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.