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Finding the Fourth Proportional to 22,266.90, 33,400.35 and 20,079.90

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Solution

The fourth proportional to 22,266.90, 33,400.35 and 20,079.90 is: 30,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,266.90 : 33,400.35 = 20,079.90 : x
  2. Step 2: Convert to fraction form
    22,266.90/33,400.35 = 20,079.90/x
  3. Step 3: Cross multiply
    22,266.90x = 33,400.35 × 20,079.90
  4. Step 4: Simplify right side
    22,266.90x = 670,675,687.97
  5. Step 5: Solve for x
    x = 670,675,687.97/22,266.90
  6. Step 6: Final answer
    x = 30,119.85

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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.