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Finding the Fourth Proportional to 26,504.64, 39,758.64 and 8,736.48

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Solution

The fourth proportional to 26,504.64, 39,758.64 and 8,736.48 is: 13,105.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,504.64 : 39,758.64 = 8,736.48 : x
  2. Step 2: Convert to fraction form
    26,504.64/39,758.64 = 8,736.48/x
  3. Step 3: Cross multiply
    26,504.64x = 39,758.64 × 8,736.48
  4. Step 4: Simplify right side
    26,504.64x = 347,350,563.19
  5. Step 5: Solve for x
    x = 347,350,563.19/26,504.64
  6. Step 6: Final answer
    x = 13,105.27

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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.