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Finding the Fourth Proportional to 55,940.78, 83,911.39 and 22,661.47

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Solution

The fourth proportional to 55,940.78, 83,911.39 and 22,661.47 is: 33,992.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,940.78 : 83,911.39 = 22,661.47 : x
  2. Step 2: Convert to fraction form
    55,940.78/83,911.39 = 22,661.47/x
  3. Step 3: Cross multiply
    55,940.78x = 83,911.39 × 22,661.47
  4. Step 4: Simplify right side
    55,940.78x = 1,901,555,447.14
  5. Step 5: Solve for x
    x = 1,901,555,447.14/55,940.78
  6. Step 6: Final answer
    x = 33,992.29

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1.5x scale

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.