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Finding the Fourth Proportional to 12,581.60, 18,883.20 and 5,572.40

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Solution

The fourth proportional to 12,581.60, 18,883.20 and 5,572.40 is: 8,363.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.60 : 18,883.20 = 5,572.40 : x
  2. Step 2: Convert to fraction form
    12,581.60/18,883.20 = 5,572.40/x
  3. Step 3: Cross multiply
    12,581.60x = 18,883.20 × 5,572.40
  4. Step 4: Simplify right side
    12,581.60x = 105,224,743.68
  5. Step 5: Solve for x
    x = 105,224,743.68/12,581.60
  6. Step 6: Final answer
    x = 8,363.38

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