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Finding the Fourth Proportional to 36,687.60, 55,035.99 and 10,392.30

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Solution

The fourth proportional to 36,687.60, 55,035.99 and 10,392.30 is: 15,589.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,687.60 : 55,035.99 = 10,392.30 : x
  2. Step 2: Convert to fraction form
    36,687.60/55,035.99 = 10,392.30/x
  3. Step 3: Cross multiply
    36,687.60x = 55,035.99 × 10,392.30
  4. Step 4: Simplify right side
    36,687.60x = 571,950,518.88
  5. Step 5: Solve for x
    x = 571,950,518.88/36,687.60
  6. Step 6: Final answer
    x = 15,589.75

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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.