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Finding the Fourth Proportional to 36,312.47, 54,479.64 and 12,935.87

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Solution

The fourth proportional to 36,312.47, 54,479.64 and 12,935.87 is: 19,407.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,312.47 : 54,479.64 = 12,935.87 : x
  2. Step 2: Convert to fraction form
    36,312.47/54,479.64 = 12,935.87/x
  3. Step 3: Cross multiply
    36,312.47x = 54,479.64 × 12,935.87
  4. Step 4: Simplify right side
    36,312.47x = 704,741,540.69
  5. Step 5: Solve for x
    x = 704,741,540.69/36,312.47
  6. Step 6: Final answer
    x = 19,407.70

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