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Finding the Fourth Proportional to 43,870.72, 65,814.96 and 14,280.61

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Solution

The fourth proportional to 43,870.72, 65,814.96 and 14,280.61 is: 21,423.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,870.72 : 65,814.96 = 14,280.61 : x
  2. Step 2: Convert to fraction form
    43,870.72/65,814.96 = 14,280.61/x
  3. Step 3: Cross multiply
    43,870.72x = 65,814.96 × 14,280.61
  4. Step 4: Simplify right side
    43,870.72x = 939,877,775.93
  5. Step 5: Solve for x
    x = 939,877,775.93/43,870.72
  6. Step 6: Final answer
    x = 21,423.81

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