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Finding the Fourth Proportional to 26,608.98, 39,913.44 and 7,889.16

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Solution

The fourth proportional to 26,608.98, 39,913.44 and 7,889.16 is: 11,833.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,608.98 : 39,913.44 = 7,889.16 : x
  2. Step 2: Convert to fraction form
    26,608.98/39,913.44 = 7,889.16/x
  3. Step 3: Cross multiply
    26,608.98x = 39,913.44 × 7,889.16
  4. Step 4: Simplify right side
    26,608.98x = 314,883,514.31
  5. Step 5: Solve for x
    x = 314,883,514.31/26,608.98
  6. Step 6: Final answer
    x = 11,833.73

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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.