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Finding the Fourth Proportional to 71,714.66, 107,571.92 and 21,794.62

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Solution

The fourth proportional to 71,714.66, 107,571.92 and 21,794.62 is: 32,691.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,714.66 : 107,571.92 = 21,794.62 : x
  2. Step 2: Convert to fraction form
    71,714.66/107,571.92 = 21,794.62/x
  3. Step 3: Cross multiply
    71,714.66x = 107,571.92 × 21,794.62
  4. Step 4: Simplify right side
    71,714.66x = 2,344,489,119.07
  5. Step 5: Solve for x
    x = 2,344,489,119.07/71,714.66
  6. Step 6: Final answer
    x = 32,691.91

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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.