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Finding the Fourth Proportional to 18,041.94, 27,057.78 and 7,651.26

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Solution

The fourth proportional to 18,041.94, 27,057.78 and 7,651.26 is: 11,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,041.94 : 27,057.78 = 7,651.26 : x
  2. Step 2: Convert to fraction form
    18,041.94/27,057.78 = 7,651.26/x
  3. Step 3: Cross multiply
    18,041.94x = 27,057.78 × 7,651.26
  4. Step 4: Simplify right side
    18,041.94x = 207,026,109.80
  5. Step 5: Solve for x
    x = 207,026,109.80/18,041.94
  6. Step 6: Final answer
    x = 11,474.71

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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.