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Finding the Fourth Proportional to 18,377.92, 27,571.50 and 5,230.30

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Solution

The fourth proportional to 18,377.92, 27,571.50 and 5,230.30 is: 7,846.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.92 : 27,571.50 = 5,230.30 : x
  2. Step 2: Convert to fraction form
    18,377.92/27,571.50 = 5,230.30/x
  3. Step 3: Cross multiply
    18,377.92x = 27,571.50 × 5,230.30
  4. Step 4: Simplify right side
    18,377.92x = 144,207,216.45
  5. Step 5: Solve for x
    x = 144,207,216.45/18,377.92
  6. Step 6: Final answer
    x = 7,846.76

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1.5x scale

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.