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Finding the Fourth Proportional to 61,010.87, 84,190.91 and 33,786.05

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Solution

The fourth proportional to 61,010.87, 84,190.91 and 33,786.05 is: 46,622.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,010.87 : 84,190.91 = 33,786.05 : x
  2. Step 2: Convert to fraction form
    61,010.87/84,190.91 = 33,786.05/x
  3. Step 3: Cross multiply
    61,010.87x = 84,190.91 × 33,786.05
  4. Step 4: Simplify right side
    61,010.87x = 2,844,477,704.92
  5. Step 5: Solve for x
    x = 2,844,477,704.92/61,010.87
  6. Step 6: Final answer
    x = 46,622.48

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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.