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Finding the Fourth Proportional to 7,981.80, 11,960.40 and 5,053.96

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Solution

The fourth proportional to 7,981.80, 11,960.40 and 5,053.96 is: 7,573.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.80 : 11,960.40 = 5,053.96 : x
  2. Step 2: Convert to fraction form
    7,981.80/11,960.40 = 5,053.96/x
  3. Step 3: Cross multiply
    7,981.80x = 11,960.40 × 5,053.96
  4. Step 4: Simplify right side
    7,981.80x = 60,447,331.09
  5. Step 5: Solve for x
    x = 60,447,331.09/7,981.80
  6. Step 6: Final answer
    x = 7,573.14

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