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Finding the Fourth Proportional to 55,819.54, 76,978.08 and 36,665.62

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Solution

The fourth proportional to 55,819.54, 76,978.08 and 36,665.62 is: 50,563.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,819.54 : 76,978.08 = 36,665.62 : x
  2. Step 2: Convert to fraction form
    55,819.54/76,978.08 = 36,665.62/x
  3. Step 3: Cross multiply
    55,819.54x = 76,978.08 × 36,665.62
  4. Step 4: Simplify right side
    55,819.54x = 2,822,449,029.61
  5. Step 5: Solve for x
    x = 2,822,449,029.61/55,819.54
  6. Step 6: Final answer
    x = 50,563.82

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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.