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Finding the Fourth Proportional to 57,819.80, 86,729.70 and 16,266.80

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Solution

The fourth proportional to 57,819.80, 86,729.70 and 16,266.80 is: 24,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,819.80 : 86,729.70 = 16,266.80 : x
  2. Step 2: Convert to fraction form
    57,819.80/86,729.70 = 16,266.80/x
  3. Step 3: Cross multiply
    57,819.80x = 86,729.70 × 16,266.80
  4. Step 4: Simplify right side
    57,819.80x = 1,410,814,683.96
  5. Step 5: Solve for x
    x = 1,410,814,683.96/57,819.80
  6. Step 6: Final answer
    x = 24,400.20

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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.