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Finding the Fourth Proportional to 61,538.80, 84,923.60 and 33,244.48

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Solution

The fourth proportional to 61,538.80, 84,923.60 and 33,244.48 is: 45,877.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,538.80 : 84,923.60 = 33,244.48 : x
  2. Step 2: Convert to fraction form
    61,538.80/84,923.60 = 33,244.48/x
  3. Step 3: Cross multiply
    61,538.80x = 84,923.60 × 33,244.48
  4. Step 4: Simplify right side
    61,538.80x = 2,823,240,921.73
  5. Step 5: Solve for x
    x = 2,823,240,921.73/61,538.80
  6. Step 6: Final answer
    x = 45,877.41

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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.