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Finding the Fourth Proportional to 27,110.10, 40,665.15 and 9,579.90

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Solution

The fourth proportional to 27,110.10, 40,665.15 and 9,579.90 is: 14,369.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,110.10 : 40,665.15 = 9,579.90 : x
  2. Step 2: Convert to fraction form
    27,110.10/40,665.15 = 9,579.90/x
  3. Step 3: Cross multiply
    27,110.10x = 40,665.15 × 9,579.90
  4. Step 4: Simplify right side
    27,110.10x = 389,568,070.49
  5. Step 5: Solve for x
    x = 389,568,070.49/27,110.10
  6. Step 6: Final answer
    x = 14,369.85

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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.