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Finding the Fourth Proportional to 22,378.30, 33,571.08 and 7,380.94

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Solution

The fourth proportional to 22,378.30, 33,571.08 and 7,380.94 is: 11,072.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378.30 : 33,571.08 = 7,380.94 : x
  2. Step 2: Convert to fraction form
    22,378.30/33,571.08 = 7,380.94/x
  3. Step 3: Cross multiply
    22,378.30x = 33,571.08 × 7,380.94
  4. Step 4: Simplify right side
    22,378.30x = 247,786,127.22
  5. Step 5: Solve for x
    x = 247,786,127.22/22,378.30
  6. Step 6: Final answer
    x = 11,072.61

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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.