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Finding the Fourth Proportional to 71,961.44, 107,990.08 and 25,214.24

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Solution

The fourth proportional to 71,961.44, 107,990.08 and 25,214.24 is: 37,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,961.44 : 107,990.08 = 25,214.24 : x
  2. Step 2: Convert to fraction form
    71,961.44/107,990.08 = 25,214.24/x
  3. Step 3: Cross multiply
    71,961.44x = 107,990.08 × 25,214.24
  4. Step 4: Simplify right side
    71,961.44x = 2,722,887,794.74
  5. Step 5: Solve for x
    x = 2,722,887,794.74/71,961.44
  6. Step 6: Final answer
    x = 37,838.15

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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.