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Finding the Fourth Proportional to 14,171.68, 21,243.42 and 6,767.48

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Solution

The fourth proportional to 14,171.68, 21,243.42 and 6,767.48 is: 10,144.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,171.68 : 21,243.42 = 6,767.48 : x
  2. Step 2: Convert to fraction form
    14,171.68/21,243.42 = 6,767.48/x
  3. Step 3: Cross multiply
    14,171.68x = 21,243.42 × 6,767.48
  4. Step 4: Simplify right side
    14,171.68x = 143,764,487.54
  5. Step 5: Solve for x
    x = 143,764,487.54/14,171.68
  6. Step 6: Final answer
    x = 10,144.49

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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.