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Finding the Fourth Proportional to 13,322.91, 19,981.91 and 4,887.58

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Solution

The fourth proportional to 13,322.91, 19,981.91 and 4,887.58 is: 7,330.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.91 : 19,981.91 = 4,887.58 : x
  2. Step 2: Convert to fraction form
    13,322.91/19,981.91 = 4,887.58/x
  3. Step 3: Cross multiply
    13,322.91x = 19,981.91 × 4,887.58
  4. Step 4: Simplify right side
    13,322.91x = 97,663,183.68
  5. Step 5: Solve for x
    x = 97,663,183.68/13,322.91
  6. Step 6: Final answer
    x = 7,330.47

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