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Finding the Fourth Proportional to 12,975.76, 19,463.37 and 8,805.34

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Solution

The fourth proportional to 12,975.76, 19,463.37 and 8,805.34 is: 13,207.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.76 : 19,463.37 = 8,805.34 : x
  2. Step 2: Convert to fraction form
    12,975.76/19,463.37 = 8,805.34/x
  3. Step 3: Cross multiply
    12,975.76x = 19,463.37 × 8,805.34
  4. Step 4: Simplify right side
    12,975.76x = 171,381,590.40
  5. Step 5: Solve for x
    x = 171,381,590.40/12,975.76
  6. Step 6: Final answer
    x = 13,207.83

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