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Finding the Fourth Proportional to 43,791.68, 65,697.24 and 12,624.50

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Solution

The fourth proportional to 43,791.68, 65,697.24 and 12,624.50 is: 18,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,791.68 : 65,697.24 = 12,624.50 : x
  2. Step 2: Convert to fraction form
    43,791.68/65,697.24 = 12,624.50/x
  3. Step 3: Cross multiply
    43,791.68x = 65,697.24 × 12,624.50
  4. Step 4: Simplify right side
    43,791.68x = 829,394,806.38
  5. Step 5: Solve for x
    x = 829,394,806.38/43,791.68
  6. Step 6: Final answer
    x = 18,939.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.