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Finding the Fourth Proportional to 22,650.28, 33,981.50 and 7,859.21

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Solution

The fourth proportional to 22,650.28, 33,981.50 and 7,859.21 is: 11,790.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,650.28 : 33,981.50 = 7,859.21 : x
  2. Step 2: Convert to fraction form
    22,650.28/33,981.50 = 7,859.21/x
  3. Step 3: Cross multiply
    22,650.28x = 33,981.50 × 7,859.21
  4. Step 4: Simplify right side
    22,650.28x = 267,067,594.36
  5. Step 5: Solve for x
    x = 267,067,594.36/22,650.28
  6. Step 6: Final answer
    x = 11,790.92

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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.