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Finding the Fourth Proportional to 6,943.68, 10,410.64 and 3,478.48

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Solution

The fourth proportional to 6,943.68, 10,410.64 and 3,478.48 is: 5,215.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,943.68 : 10,410.64 = 3,478.48 : x
  2. Step 2: Convert to fraction form
    6,943.68/10,410.64 = 3,478.48/x
  3. Step 3: Cross multiply
    6,943.68x = 10,410.64 × 3,478.48
  4. Step 4: Simplify right side
    6,943.68x = 36,213,203.03
  5. Step 5: Solve for x
    x = 36,213,203.03/6,943.68
  6. Step 6: Final answer
    x = 5,215.28

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