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Finding the Fourth Proportional to 33,246.70, 45,874.17 and 19,819.21

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Solution

The fourth proportional to 33,246.70, 45,874.17 and 19,819.21 is: 27,346.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,246.70 : 45,874.17 = 19,819.21 : x
  2. Step 2: Convert to fraction form
    33,246.70/45,874.17 = 19,819.21/x
  3. Step 3: Cross multiply
    33,246.70x = 45,874.17 × 19,819.21
  4. Step 4: Simplify right side
    33,246.70x = 909,189,706.85
  5. Step 5: Solve for x
    x = 909,189,706.85/33,246.70
  6. Step 6: Final answer
    x = 27,346.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.