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Finding the Fourth Proportional to 1,940.25, 2,677.56 and 1,112.25

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Solution

The fourth proportional to 1,940.25, 2,677.56 and 1,112.25 is: 1,534.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.25 : 2,677.56 = 1,112.25 : x
  2. Step 2: Convert to fraction form
    1,940.25/2,677.56 = 1,112.25/x
  3. Step 3: Cross multiply
    1,940.25x = 2,677.56 × 1,112.25
  4. Step 4: Simplify right side
    1,940.25x = 2,978,116.11
  5. Step 5: Solve for x
    x = 2,978,116.11/1,940.25
  6. Step 6: Final answer
    x = 1,534.91

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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.