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Finding the Fourth Proportional to 11,650.86, 17,478.99 and 3,330.99

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Solution

The fourth proportional to 11,650.86, 17,478.99 and 3,330.99 is: 4,997.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,650.86 : 17,478.99 = 3,330.99 : x
  2. Step 2: Convert to fraction form
    11,650.86/17,478.99 = 3,330.99/x
  3. Step 3: Cross multiply
    11,650.86x = 17,478.99 × 3,330.99
  4. Step 4: Simplify right side
    11,650.86x = 58,222,340.90
  5. Step 5: Solve for x
    x = 58,222,340.90/11,650.86
  6. Step 6: Final answer
    x = 4,997.26

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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.