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Finding the Fourth Proportional to 18,041.40, 27,057.30 and 5,561.40

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Solution

The fourth proportional to 18,041.40, 27,057.30 and 5,561.40 is: 8,340.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,041.40 : 27,057.30 = 5,561.40 : x
  2. Step 2: Convert to fraction form
    18,041.40/27,057.30 = 5,561.40/x
  3. Step 3: Cross multiply
    18,041.40x = 27,057.30 × 5,561.40
  4. Step 4: Simplify right side
    18,041.40x = 150,476,468.22
  5. Step 5: Solve for x
    x = 150,476,468.22/18,041.40
  6. Step 6: Final answer
    x = 8,340.62

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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.