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Finding the Fourth Proportional to 7,797.76, 11,721.27 and 6,715.21

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Solution

The fourth proportional to 7,797.76, 11,721.27 and 6,715.21 is: 10,094.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,797.76 : 11,721.27 = 6,715.21 : x
  2. Step 2: Convert to fraction form
    7,797.76/11,721.27 = 6,715.21/x
  3. Step 3: Cross multiply
    7,797.76x = 11,721.27 × 6,715.21
  4. Step 4: Simplify right side
    7,797.76x = 78,710,789.52
  5. Step 5: Solve for x
    x = 78,710,789.52/7,797.76
  6. Step 6: Final answer
    x = 10,094.03

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