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Finding the Fourth Proportional to 22,426.75, 33,639.79 and 7,645.99

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Solution

The fourth proportional to 22,426.75, 33,639.79 and 7,645.99 is: 11,468.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,426.75 : 33,639.79 = 7,645.99 : x
  2. Step 2: Convert to fraction form
    22,426.75/33,639.79 = 7,645.99/x
  3. Step 3: Cross multiply
    22,426.75x = 33,639.79 × 7,645.99
  4. Step 4: Simplify right side
    22,426.75x = 257,209,497.94
  5. Step 5: Solve for x
    x = 257,209,497.94/22,426.75
  6. Step 6: Final answer
    x = 11,468.87

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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.