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Finding the Fourth Proportional to 22,241.01, 30,691.71 and 12,169.20

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Solution

The fourth proportional to 22,241.01, 30,691.71 and 12,169.20 is: 16,793.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,241.01 : 30,691.71 = 12,169.20 : x
  2. Step 2: Convert to fraction form
    22,241.01/30,691.71 = 12,169.20/x
  3. Step 3: Cross multiply
    22,241.01x = 30,691.71 × 12,169.20
  4. Step 4: Simplify right side
    22,241.01x = 373,493,557.33
  5. Step 5: Solve for x
    x = 373,493,557.33/22,241.01
  6. Step 6: Final answer
    x = 16,793.01

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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.