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Finding the Fourth Proportional to 12,210.17, 18,315.30 and 2,976.17

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Solution

The fourth proportional to 12,210.17, 18,315.30 and 2,976.17 is: 4,464.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210.17 : 18,315.30 = 2,976.17 : x
  2. Step 2: Convert to fraction form
    12,210.17/18,315.30 = 2,976.17/x
  3. Step 3: Cross multiply
    12,210.17x = 18,315.30 × 2,976.17
  4. Step 4: Simplify right side
    12,210.17x = 54,509,446.40
  5. Step 5: Solve for x
    x = 54,509,446.40/12,210.17
  6. Step 6: Final answer
    x = 4,464.27

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