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Finding the Fourth Proportional to 58,882.76, 81,270.77 and 36,221.79

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Solution

The fourth proportional to 58,882.76, 81,270.77 and 36,221.79 is: 49,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,882.76 : 81,270.77 = 36,221.79 : x
  2. Step 2: Convert to fraction form
    58,882.76/81,270.77 = 36,221.79/x
  3. Step 3: Cross multiply
    58,882.76x = 81,270.77 × 36,221.79
  4. Step 4: Simplify right side
    58,882.76x = 2,943,772,582.97
  5. Step 5: Solve for x
    x = 2,943,772,582.97/58,882.76
  6. Step 6: Final answer
    x = 49,993.80

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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.