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Finding the Fourth Proportional to 53,758.62, 80,611.80 and 16,311.91

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Solution

The fourth proportional to 53,758.62, 80,611.80 and 16,311.91 is: 24,459.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,758.62 : 80,611.80 = 16,311.91 : x
  2. Step 2: Convert to fraction form
    53,758.62/80,611.80 = 16,311.91/x
  3. Step 3: Cross multiply
    53,758.62x = 80,611.80 × 16,311.91
  4. Step 4: Simplify right side
    53,758.62x = 1,314,932,426.54
  5. Step 5: Solve for x
    x = 1,314,932,426.54/53,758.62
  6. Step 6: Final answer
    x = 24,459.94

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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.