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Finding the Fourth Proportional to 8,764.72, 13,140.47 and 4,543.43

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Solution

The fourth proportional to 8,764.72, 13,140.47 and 4,543.43 is: 6,811.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.72 : 13,140.47 = 4,543.43 : x
  2. Step 2: Convert to fraction form
    8,764.72/13,140.47 = 4,543.43/x
  3. Step 3: Cross multiply
    8,764.72x = 13,140.47 × 4,543.43
  4. Step 4: Simplify right side
    8,764.72x = 59,702,717.19
  5. Step 5: Solve for x
    x = 59,702,717.19/8,764.72
  6. Step 6: Final answer
    x = 6,811.71

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