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Finding the Fourth Proportional to 83,213.14, 124,819.71 and 27,809.14

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Solution

The fourth proportional to 83,213.14, 124,819.71 and 27,809.14 is: 41,713.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,213.14 : 124,819.71 = 27,809.14 : x
  2. Step 2: Convert to fraction form
    83,213.14/124,819.71 = 27,809.14/x
  3. Step 3: Cross multiply
    83,213.14x = 124,819.71 × 27,809.14
  4. Step 4: Simplify right side
    83,213.14x = 3,471,128,790.15
  5. Step 5: Solve for x
    x = 3,471,128,790.15/83,213.14
  6. Step 6: Final answer
    x = 41,713.71

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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.