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Finding the Fourth Proportional to 63,828.40, 87,991.92 and 44,906.80

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Solution

The fourth proportional to 63,828.40, 87,991.92 and 44,906.80 is: 61,907.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,828.40 : 87,991.92 = 44,906.80 : x
  2. Step 2: Convert to fraction form
    63,828.40/87,991.92 = 44,906.80/x
  3. Step 3: Cross multiply
    63,828.40x = 87,991.92 × 44,906.80
  4. Step 4: Simplify right side
    63,828.40x = 3,951,435,553.06
  5. Step 5: Solve for x
    x = 3,951,435,553.06/63,828.40
  6. Step 6: Final answer
    x = 61,907.17

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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.