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Finding the Fourth Proportional to 22,240.87, 30,692.12 and 12,169.18

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Solution

The fourth proportional to 22,240.87, 30,692.12 and 12,169.18 is: 16,793.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,240.87 : 30,692.12 = 12,169.18 : x
  2. Step 2: Convert to fraction form
    22,240.87/30,692.12 = 12,169.18/x
  3. Step 3: Cross multiply
    22,240.87x = 30,692.12 × 12,169.18
  4. Step 4: Simplify right side
    22,240.87x = 373,497,779.40
  5. Step 5: Solve for x
    x = 373,497,779.40/22,240.87
  6. Step 6: Final answer
    x = 16,793.31

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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.