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Finding the Fourth Proportional to 1,995.69, 2,754.14 and 1,111.49

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Solution

The fourth proportional to 1,995.69, 2,754.14 and 1,111.49 is: 1,533.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.69 : 2,754.14 = 1,111.49 : x
  2. Step 2: Convert to fraction form
    1,995.69/2,754.14 = 1,111.49/x
  3. Step 3: Cross multiply
    1,995.69x = 2,754.14 × 1,111.49
  4. Step 4: Simplify right side
    1,995.69x = 3,061,204.56
  5. Step 5: Solve for x
    x = 3,061,204.56/1,995.69
  6. Step 6: Final answer
    x = 1,533.90

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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.