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Finding the Fourth Proportional to 22,408.82, 33,520.88 and 18,415.11

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Solution

The fourth proportional to 22,408.82, 33,520.88 and 18,415.11 is: 27,546.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,408.82 : 33,520.88 = 18,415.11 : x
  2. Step 2: Convert to fraction form
    22,408.82/33,520.88 = 18,415.11/x
  3. Step 3: Cross multiply
    22,408.82x = 33,520.88 × 18,415.11
  4. Step 4: Simplify right side
    22,408.82x = 617,290,692.50
  5. Step 5: Solve for x
    x = 617,290,692.50/22,408.82
  6. Step 6: Final answer
    x = 27,546.77

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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.