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Finding the Fourth Proportional to 43,716.73, 65,559.02 and 15,629.20

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Solution

The fourth proportional to 43,716.73, 65,559.02 and 15,629.20 is: 23,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,716.73 : 65,559.02 = 15,629.20 : x
  2. Step 2: Convert to fraction form
    43,716.73/65,559.02 = 15,629.20/x
  3. Step 3: Cross multiply
    43,716.73x = 65,559.02 × 15,629.20
  4. Step 4: Simplify right side
    43,716.73x = 1,024,635,035.38
  5. Step 5: Solve for x
    x = 1,024,635,035.38/43,716.73
  6. Step 6: Final answer
    x = 23,438.05

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Why These Related Problems?

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