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Finding the Fourth Proportional to 55,819.40, 76,998.40 and 36,702.59

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Solution

The fourth proportional to 55,819.40, 76,998.40 and 36,702.59 is: 50,628.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,819.40 : 76,998.40 = 36,702.59 : x
  2. Step 2: Convert to fraction form
    55,819.40/76,998.40 = 36,702.59/x
  3. Step 3: Cross multiply
    55,819.40x = 76,998.40 × 36,702.59
  4. Step 4: Simplify right side
    55,819.40x = 2,826,040,229.11
  5. Step 5: Solve for x
    x = 2,826,040,229.11/55,819.40
  6. Step 6: Final answer
    x = 50,628.28

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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.