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Finding the Fourth Proportional to 22,639.92, 33,961.26 and 7,645.80

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Solution

The fourth proportional to 22,639.92, 33,961.26 and 7,645.80 is: 11,469.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,639.92 : 33,961.26 = 7,645.80 : x
  2. Step 2: Convert to fraction form
    22,639.92/33,961.26 = 7,645.80/x
  3. Step 3: Cross multiply
    22,639.92x = 33,961.26 × 7,645.80
  4. Step 4: Simplify right side
    22,639.92x = 259,661,001.71
  5. Step 5: Solve for x
    x = 259,661,001.71/22,639.92
  6. Step 6: Final answer
    x = 11,469.17

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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.