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Finding the Fourth Proportional to 18,240.56, 27,362.19 and 6,553.88

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Solution

The fourth proportional to 18,240.56, 27,362.19 and 6,553.88 is: 9,831.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.56 : 27,362.19 = 6,553.88 : x
  2. Step 2: Convert to fraction form
    18,240.56/27,362.19 = 6,553.88/x
  3. Step 3: Cross multiply
    18,240.56x = 27,362.19 × 6,553.88
  4. Step 4: Simplify right side
    18,240.56x = 179,328,509.80
  5. Step 5: Solve for x
    x = 179,328,509.80/18,240.56
  6. Step 6: Final answer
    x = 9,831.31

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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.