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Finding the Fourth Proportional to 56,591.37, 84,821.44 and 53,310.87

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Solution

The fourth proportional to 56,591.37, 84,821.44 and 53,310.87 is: 79,904.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,591.37 : 84,821.44 = 53,310.87 : x
  2. Step 2: Convert to fraction form
    56,591.37/84,821.44 = 53,310.87/x
  3. Step 3: Cross multiply
    56,591.37x = 84,821.44 × 53,310.87
  4. Step 4: Simplify right side
    56,591.37x = 4,521,904,727.73
  5. Step 5: Solve for x
    x = 4,521,904,727.73/56,591.37
  6. Step 6: Final answer
    x = 79,904.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.