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Finding the Fourth Proportional to 13,655.08, 20,482.62 and 7,807.59

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Solution

The fourth proportional to 13,655.08, 20,482.62 and 7,807.59 is: 11,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.08 : 20,482.62 = 7,807.59 : x
  2. Step 2: Convert to fraction form
    13,655.08/20,482.62 = 7,807.59/x
  3. Step 3: Cross multiply
    13,655.08x = 20,482.62 × 7,807.59
  4. Step 4: Simplify right side
    13,655.08x = 159,919,913.73
  5. Step 5: Solve for x
    x = 159,919,913.73/13,655.08
  6. Step 6: Final answer
    x = 11,711.39

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