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Finding the Fourth Proportional to 59,408.40, 81,983.58 and 35,540.69

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Solution

The fourth proportional to 59,408.40, 81,983.58 and 35,540.69 is: 49,046.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,408.40 : 81,983.58 = 35,540.69 : x
  2. Step 2: Convert to fraction form
    59,408.40/81,983.58 = 35,540.69/x
  3. Step 3: Cross multiply
    59,408.40x = 81,983.58 × 35,540.69
  4. Step 4: Simplify right side
    59,408.40x = 2,913,753,001.87
  5. Step 5: Solve for x
    x = 2,913,753,001.87/59,408.40
  6. Step 6: Final answer
    x = 49,046.15

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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.