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Finding the Fourth Proportional to 16,805.76, 25,208.64 and 5,119.08

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Solution

The fourth proportional to 16,805.76, 25,208.64 and 5,119.08 is: 7,678.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,805.76 : 25,208.64 = 5,119.08 : x
  2. Step 2: Convert to fraction form
    16,805.76/25,208.64 = 5,119.08/x
  3. Step 3: Cross multiply
    16,805.76x = 25,208.64 × 5,119.08
  4. Step 4: Simplify right side
    16,805.76x = 129,045,044.85
  5. Step 5: Solve for x
    x = 129,045,044.85/16,805.76
  6. Step 6: Final answer
    x = 7,678.62

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