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Finding the Fourth Proportional to 33,428.60, 50,142.90 and 16,839.80

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Solution

The fourth proportional to 33,428.60, 50,142.90 and 16,839.80 is: 25,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,428.60 : 50,142.90 = 16,839.80 : x
  2. Step 2: Convert to fraction form
    33,428.60/50,142.90 = 16,839.80/x
  3. Step 3: Cross multiply
    33,428.60x = 50,142.90 × 16,839.80
  4. Step 4: Simplify right side
    33,428.60x = 844,396,407.42
  5. Step 5: Solve for x
    x = 844,396,407.42/33,428.60
  6. Step 6: Final answer
    x = 25,259.70

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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.