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Finding the Fourth Proportional to 51,212.80, 76,819.20 and 33,498.10

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Solution

The fourth proportional to 51,212.80, 76,819.20 and 33,498.10 is: 50,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,212.80 : 76,819.20 = 33,498.10 : x
  2. Step 2: Convert to fraction form
    51,212.80/76,819.20 = 33,498.10/x
  3. Step 3: Cross multiply
    51,212.80x = 76,819.20 × 33,498.10
  4. Step 4: Simplify right side
    51,212.80x = 2,573,297,243.52
  5. Step 5: Solve for x
    x = 2,573,297,243.52/51,212.80
  6. Step 6: Final answer
    x = 50,247.15

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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.