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Finding the Fourth Proportional to 56,650.96, 84,860.60 and 26,978.96

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Solution

The fourth proportional to 56,650.96, 84,860.60 and 26,978.96 is: 40,413.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,650.96 : 84,860.60 = 26,978.96 : x
  2. Step 2: Convert to fraction form
    56,650.96/84,860.60 = 26,978.96/x
  3. Step 3: Cross multiply
    56,650.96x = 84,860.60 × 26,978.96
  4. Step 4: Simplify right side
    56,650.96x = 2,289,450,732.98
  5. Step 5: Solve for x
    x = 2,289,450,732.98/56,650.96
  6. Step 6: Final answer
    x = 40,413.27

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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.