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Finding the Fourth Proportional to 29,586.36, 40,819.36 and 19,519.80

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Solution

The fourth proportional to 29,586.36, 40,819.36 and 19,519.80 is: 26,930.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,586.36 : 40,819.36 = 19,519.80 : x
  2. Step 2: Convert to fraction form
    29,586.36/40,819.36 = 19,519.80/x
  3. Step 3: Cross multiply
    29,586.36x = 40,819.36 × 19,519.80
  4. Step 4: Simplify right side
    29,586.36x = 796,785,743.33
  5. Step 5: Solve for x
    x = 796,785,743.33/29,586.36
  6. Step 6: Final answer
    x = 26,930.85

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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.