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Finding the Fourth Proportional to 65,843.78, 98,777.97 and 26,403.98

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Solution

The fourth proportional to 65,843.78, 98,777.97 and 26,403.98 is: 39,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,843.78 : 98,777.97 = 26,403.98 : x
  2. Step 2: Convert to fraction form
    65,843.78/98,777.97 = 26,403.98/x
  3. Step 3: Cross multiply
    65,843.78x = 98,777.97 × 26,403.98
  4. Step 4: Simplify right side
    65,843.78x = 2,608,131,544.32
  5. Step 5: Solve for x
    x = 2,608,131,544.32/65,843.78
  6. Step 6: Final answer
    x = 39,610.90

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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.