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Finding the Fourth Proportional to 12,215.63, 16,856.77 and 6,837.17

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Solution

The fourth proportional to 12,215.63, 16,856.77 and 6,837.17 is: 9,434.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.63 : 16,856.77 = 6,837.17 : x
  2. Step 2: Convert to fraction form
    12,215.63/16,856.77 = 6,837.17/x
  3. Step 3: Cross multiply
    12,215.63x = 16,856.77 × 6,837.17
  4. Step 4: Simplify right side
    12,215.63x = 115,252,602.14
  5. Step 5: Solve for x
    x = 115,252,602.14/12,215.63
  6. Step 6: Final answer
    x = 9,434.85

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