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Finding the Fourth Proportional to 17,255.71, 25,879.29 and 7,393.87

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Solution

The fourth proportional to 17,255.71, 25,879.29 and 7,393.87 is: 11,088.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,255.71 : 25,879.29 = 7,393.87 : x
  2. Step 2: Convert to fraction form
    17,255.71/25,879.29 = 7,393.87/x
  3. Step 3: Cross multiply
    17,255.71x = 25,879.29 × 7,393.87
  4. Step 4: Simplify right side
    17,255.71x = 191,348,105.95
  5. Step 5: Solve for x
    x = 191,348,105.95/17,255.71
  6. Step 6: Final answer
    x = 11,088.97

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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.