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Finding the Fourth Proportional to 1,959.87, 2,936.57 and 1,227.63

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Solution

The fourth proportional to 1,959.87, 2,936.57 and 1,227.63 is: 1,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.87 : 2,936.57 = 1,227.63 : x
  2. Step 2: Convert to fraction form
    1,959.87/2,936.57 = 1,227.63/x
  3. Step 3: Cross multiply
    1,959.87x = 2,936.57 × 1,227.63
  4. Step 4: Simplify right side
    1,959.87x = 3,605,015.29
  5. Step 5: Solve for x
    x = 3,605,015.29/1,959.87
  6. Step 6: Final answer
    x = 1,839.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.