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Finding the Fourth Proportional to 45,991.91, 63,469.40 and 25,847.61

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Solution

The fourth proportional to 45,991.91, 63,469.40 and 25,847.61 is: 35,670.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,991.91 : 63,469.40 = 25,847.61 : x
  2. Step 2: Convert to fraction form
    45,991.91/63,469.40 = 25,847.61/x
  3. Step 3: Cross multiply
    45,991.91x = 63,469.40 × 25,847.61
  4. Step 4: Simplify right side
    45,991.91x = 1,640,532,168.90
  5. Step 5: Solve for x
    x = 1,640,532,168.90/45,991.91
  6. Step 6: Final answer
    x = 35,670.02

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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.