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Finding the Fourth Proportional to 19,596.69, 27,057.11 and 15,051.78

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Solution

The fourth proportional to 19,596.69, 27,057.11 and 15,051.78 is: 20,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,596.69 : 27,057.11 = 15,051.78 : x
  2. Step 2: Convert to fraction form
    19,596.69/27,057.11 = 15,051.78/x
  3. Step 3: Cross multiply
    19,596.69x = 27,057.11 × 15,051.78
  4. Step 4: Simplify right side
    19,596.69x = 407,257,591.90
  5. Step 5: Solve for x
    x = 407,257,591.90/19,596.69
  6. Step 6: Final answer
    x = 20,781.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.