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Finding the Fourth Proportional to 18,295.28, 27,452.92 and 7,763.68

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Solution

The fourth proportional to 18,295.28, 27,452.92 and 7,763.68 is: 11,649.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.28 : 27,452.92 = 7,763.68 : x
  2. Step 2: Convert to fraction form
    18,295.28/27,452.92 = 7,763.68/x
  3. Step 3: Cross multiply
    18,295.28x = 27,452.92 × 7,763.68
  4. Step 4: Simplify right side
    18,295.28x = 213,135,685.95
  5. Step 5: Solve for x
    x = 213,135,685.95/18,295.28
  6. Step 6: Final answer
    x = 11,649.76

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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.