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Finding the Fourth Proportional to 69,086.72, 103,614.60 and 26,967.80

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Solution

The fourth proportional to 69,086.72, 103,614.60 and 26,967.80 is: 40,445.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,086.72 : 103,614.60 = 26,967.80 : x
  2. Step 2: Convert to fraction form
    69,086.72/103,614.60 = 26,967.80/x
  3. Step 3: Cross multiply
    69,086.72x = 103,614.60 × 26,967.80
  4. Step 4: Simplify right side
    69,086.72x = 2,794,257,809.88
  5. Step 5: Solve for x
    x = 2,794,257,809.88/69,086.72
  6. Step 6: Final answer
    x = 40,445.66

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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.