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Finding the Fourth Proportional to 36,581.10, 54,871.65 and 8,879.10

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Solution

The fourth proportional to 36,581.10, 54,871.65 and 8,879.10 is: 13,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,581.10 : 54,871.65 = 8,879.10 : x
  2. Step 2: Convert to fraction form
    36,581.10/54,871.65 = 8,879.10/x
  3. Step 3: Cross multiply
    36,581.10x = 54,871.65 × 8,879.10
  4. Step 4: Simplify right side
    36,581.10x = 487,210,867.52
  5. Step 5: Solve for x
    x = 487,210,867.52/36,581.10
  6. Step 6: Final answer
    x = 13,318.65

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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.