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Finding the Fourth Proportional to 27,608.99, 41,420.09 and 8,890.77

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Solution

The fourth proportional to 27,608.99, 41,420.09 and 8,890.77 is: 13,338.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,608.99 : 41,420.09 = 8,890.77 : x
  2. Step 2: Convert to fraction form
    27,608.99/41,420.09 = 8,890.77/x
  3. Step 3: Cross multiply
    27,608.99x = 41,420.09 × 8,890.77
  4. Step 4: Simplify right side
    27,608.99x = 368,256,449.12
  5. Step 5: Solve for x
    x = 368,256,449.12/27,608.99
  6. Step 6: Final answer
    x = 13,338.28

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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.