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Finding the Fourth Proportional to 22,672.90, 33,942.15 and 16,855.30

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Solution

The fourth proportional to 22,672.90, 33,942.15 and 16,855.30 is: 25,232.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,672.90 : 33,942.15 = 16,855.30 : x
  2. Step 2: Convert to fraction form
    22,672.90/33,942.15 = 16,855.30/x
  3. Step 3: Cross multiply
    22,672.90x = 33,942.15 × 16,855.30
  4. Step 4: Simplify right side
    22,672.90x = 572,105,120.90
  5. Step 5: Solve for x
    x = 572,105,120.90/22,672.90
  6. Step 6: Final answer
    x = 25,232.99

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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.