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Finding the Fourth Proportional to 33,778.80, 50,711.40 and 17,996.40

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Solution

The fourth proportional to 33,778.80, 50,711.40 and 17,996.40 is: 27,017.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,778.80 : 50,711.40 = 17,996.40 : x
  2. Step 2: Convert to fraction form
    33,778.80/50,711.40 = 17,996.40/x
  3. Step 3: Cross multiply
    33,778.80x = 50,711.40 × 17,996.40
  4. Step 4: Simplify right side
    33,778.80x = 912,622,638.96
  5. Step 5: Solve for x
    x = 912,622,638.96/33,778.80
  6. Step 6: Final answer
    x = 27,017.62

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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.