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Finding the Fourth Proportional to 53,981.43, 80,969.85 and 18,445.94

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Solution

The fourth proportional to 53,981.43, 80,969.85 and 18,445.94 is: 27,668.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,981.43 : 80,969.85 = 18,445.94 : x
  2. Step 2: Convert to fraction form
    53,981.43/80,969.85 = 18,445.94/x
  3. Step 3: Cross multiply
    53,981.43x = 80,969.85 × 18,445.94
  4. Step 4: Simplify right side
    53,981.43x = 1,493,564,590.06
  5. Step 5: Solve for x
    x = 1,493,564,590.06/53,981.43
  6. Step 6: Final answer
    x = 27,668.12

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