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Finding the Fourth Proportional to 17,583,610.80, 26,375,416.20 and 12,481,777.20

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Solution

The fourth proportional to 17,583,610.80, 26,375,416.20 and 12,481,777.20 is: 18,722,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,583,610.80 : 26,375,416.20 = 12,481,777.20 : x
  2. Step 2: Convert to fraction form
    17,583,610.80/26,375,416.20 = 12,481,777.20/x
  3. Step 3: Cross multiply
    17,583,610.80x = 26,375,416.20 × 12,481,777.20
  4. Step 4: Simplify right side
    17,583,610.80x = 329,212,068,565,670.62
  5. Step 5: Solve for x
    x = 329,212,068,565,670.62/17,583,610.80
  6. Step 6: Final answer
    x = 18,722,665.80

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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.