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Finding the Fourth Proportional to 13,180.60, 19,750.98 and 5,780.92

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Solution

The fourth proportional to 13,180.60, 19,750.98 and 5,780.92 is: 8,662.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180.60 : 19,750.98 = 5,780.92 : x
  2. Step 2: Convert to fraction form
    13,180.60/19,750.98 = 5,780.92/x
  3. Step 3: Cross multiply
    13,180.60x = 19,750.98 × 5,780.92
  4. Step 4: Simplify right side
    13,180.60x = 114,178,835.30
  5. Step 5: Solve for x
    x = 114,178,835.30/13,180.60
  6. Step 6: Final answer
    x = 8,662.64

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