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Finding the Fourth Proportional to 22,378.80, 33,571.83 and 7,381.44

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Solution

The fourth proportional to 22,378.80, 33,571.83 and 7,381.44 is: 11,073.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378.80 : 33,571.83 = 7,381.44 : x
  2. Step 2: Convert to fraction form
    22,378.80/33,571.83 = 7,381.44/x
  3. Step 3: Cross multiply
    22,378.80x = 33,571.83 × 7,381.44
  4. Step 4: Simplify right side
    22,378.80x = 247,808,448.84
  5. Step 5: Solve for x
    x = 247,808,448.84/22,378.80
  6. Step 6: Final answer
    x = 11,073.36

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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.