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Finding the Fourth Proportional to 8,905.92, 13,362.40 and 2,750.40

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Solution

The fourth proportional to 8,905.92, 13,362.40 and 2,750.40 is: 4,126.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.92 : 13,362.40 = 2,750.40 : x
  2. Step 2: Convert to fraction form
    8,905.92/13,362.40 = 2,750.40/x
  3. Step 3: Cross multiply
    8,905.92x = 13,362.40 × 2,750.40
  4. Step 4: Simplify right side
    8,905.92x = 36,751,944.96
  5. Step 5: Solve for x
    x = 36,751,944.96/8,905.92
  6. Step 6: Final answer
    x = 4,126.69

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