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Finding the Fourth Proportional to 33,221.60, 49,846.80 and 16,805.60

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Solution

The fourth proportional to 33,221.60, 49,846.80 and 16,805.60 is: 25,215.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,221.60 : 49,846.80 = 16,805.60 : x
  2. Step 2: Convert to fraction form
    33,221.60/49,846.80 = 16,805.60/x
  3. Step 3: Cross multiply
    33,221.60x = 49,846.80 × 16,805.60
  4. Step 4: Simplify right side
    33,221.60x = 837,705,382.08
  5. Step 5: Solve for x
    x = 837,705,382.08/33,221.60
  6. Step 6: Final answer
    x = 25,215.68

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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.