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Finding the Fourth Proportional to 33,220.60, 49,830.90 and 16,631.80

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Solution

The fourth proportional to 33,220.60, 49,830.90 and 16,631.80 is: 24,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,220.60 : 49,830.90 = 16,631.80 : x
  2. Step 2: Convert to fraction form
    33,220.60/49,830.90 = 16,631.80/x
  3. Step 3: Cross multiply
    33,220.60x = 49,830.90 × 16,631.80
  4. Step 4: Simplify right side
    33,220.60x = 828,777,562.62
  5. Step 5: Solve for x
    x = 828,777,562.62/33,220.60
  6. Step 6: Final answer
    x = 24,947.70

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Similar ratio
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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.