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Finding the Fourth Proportional to 19,680.96, 29,511.72 and 8,582.84

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Solution

The fourth proportional to 19,680.96, 29,511.72 and 8,582.84 is: 12,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.96 : 29,511.72 = 8,582.84 : x
  2. Step 2: Convert to fraction form
    19,680.96/29,511.72 = 8,582.84/x
  3. Step 3: Cross multiply
    19,680.96x = 29,511.72 × 8,582.84
  4. Step 4: Simplify right side
    19,680.96x = 253,294,223.33
  5. Step 5: Solve for x
    x = 253,294,223.33/19,680.96
  6. Step 6: Final answer
    x = 12,870.01

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