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Finding the Fourth Proportional to 26,597.57, 39,896.75 and 7,879.48

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Solution

The fourth proportional to 26,597.57, 39,896.75 and 7,879.48 is: 11,819.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,597.57 : 39,896.75 = 7,879.48 : x
  2. Step 2: Convert to fraction form
    26,597.57/39,896.75 = 7,879.48/x
  3. Step 3: Cross multiply
    26,597.57x = 39,896.75 × 7,879.48
  4. Step 4: Simplify right side
    26,597.57x = 314,365,563.65
  5. Step 5: Solve for x
    x = 314,365,563.65/26,597.57
  6. Step 6: Final answer
    x = 11,819.34

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1.5x scale

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.