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Finding the Fourth Proportional to 1,958.68, 2,935.74 and 1,081.72

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Solution

The fourth proportional to 1,958.68, 2,935.74 and 1,081.72 is: 1,621.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.68 : 2,935.74 = 1,081.72 : x
  2. Step 2: Convert to fraction form
    1,958.68/2,935.74 = 1,081.72/x
  3. Step 3: Cross multiply
    1,958.68x = 2,935.74 × 1,081.72
  4. Step 4: Simplify right side
    1,958.68x = 3,175,656.40
  5. Step 5: Solve for x
    x = 3,175,656.40/1,958.68
  6. Step 6: Final answer
    x = 1,621.32

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