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Finding the Fourth Proportional to 27,110.20, 40,665.30 and 9,581.80

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Solution

The fourth proportional to 27,110.20, 40,665.30 and 9,581.80 is: 14,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,110.20 : 40,665.30 = 9,581.80 : x
  2. Step 2: Convert to fraction form
    27,110.20/40,665.30 = 9,581.80/x
  3. Step 3: Cross multiply
    27,110.20x = 40,665.30 × 9,581.80
  4. Step 4: Simplify right side
    27,110.20x = 389,646,771.54
  5. Step 5: Solve for x
    x = 389,646,771.54/27,110.20
  6. Step 6: Final answer
    x = 14,372.70

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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.