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Finding the Fourth Proportional to 25,616, 35,379.24 and 17,217.92

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Solution

The fourth proportional to 25,616, 35,379.24 and 17,217.92 is: 23,780.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,616 : 35,379.24 = 17,217.92 : x
  2. Step 2: Convert to fraction form
    25,616/35,379.24 = 17,217.92/x
  3. Step 3: Cross multiply
    25,616x = 35,379.24 × 17,217.92
  4. Step 4: Simplify right side
    25,616x = 609,156,923.98
  5. Step 5: Solve for x
    x = 609,156,923.98/25,616
  6. Step 6: Final answer
    x = 23,780.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.