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Finding the Fourth Proportional to 13,955.22, 20,916.56 and 5,184.54

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Solution

The fourth proportional to 13,955.22, 20,916.56 and 5,184.54 is: 7,770.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.22 : 20,916.56 = 5,184.54 : x
  2. Step 2: Convert to fraction form
    13,955.22/20,916.56 = 5,184.54/x
  3. Step 3: Cross multiply
    13,955.22x = 20,916.56 × 5,184.54
  4. Step 4: Simplify right side
    13,955.22x = 108,442,741.98
  5. Step 5: Solve for x
    x = 108,442,741.98/13,955.22
  6. Step 6: Final answer
    x = 7,770.77

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