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Finding the Fourth Proportional to 55,373.64, 83,051.64 and 15,921.78

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Solution

The fourth proportional to 55,373.64, 83,051.64 and 15,921.78 is: 23,880.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,373.64 : 83,051.64 = 15,921.78 : x
  2. Step 2: Convert to fraction form
    55,373.64/83,051.64 = 15,921.78/x
  3. Step 3: Cross multiply
    55,373.64x = 83,051.64 × 15,921.78
  4. Step 4: Simplify right side
    55,373.64x = 1,322,329,940.72
  5. Step 5: Solve for x
    x = 1,322,329,940.72/55,373.64
  6. Step 6: Final answer
    x = 23,880.13

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