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Finding the Fourth Proportional to 26,659.72, 39,976.16 and 8,884.08

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Solution

The fourth proportional to 26,659.72, 39,976.16 and 8,884.08 is: 13,321.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,659.72 : 39,976.16 = 8,884.08 : x
  2. Step 2: Convert to fraction form
    26,659.72/39,976.16 = 8,884.08/x
  3. Step 3: Cross multiply
    26,659.72x = 39,976.16 × 8,884.08
  4. Step 4: Simplify right side
    26,659.72x = 355,151,359.11
  5. Step 5: Solve for x
    x = 355,151,359.11/26,659.72
  6. Step 6: Final answer
    x = 13,321.65

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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.