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Finding the Fourth Proportional to 22,241.62, 30,692.12 and 12,168.06

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Solution

The fourth proportional to 22,241.62, 30,692.12 and 12,168.06 is: 16,791.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,241.62 : 30,692.12 = 12,168.06 : x
  2. Step 2: Convert to fraction form
    22,241.62/30,692.12 = 12,168.06/x
  3. Step 3: Cross multiply
    22,241.62x = 30,692.12 × 12,168.06
  4. Step 4: Simplify right side
    22,241.62x = 373,463,381.75
  5. Step 5: Solve for x
    x = 373,463,381.75/22,241.62
  6. Step 6: Final answer
    x = 16,791.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.