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Finding the Fourth Proportional to 11,671.83, 17,505.08 and 3,351.78

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Solution

The fourth proportional to 11,671.83, 17,505.08 and 3,351.78 is: 5,026.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,671.83 : 17,505.08 = 3,351.78 : x
  2. Step 2: Convert to fraction form
    11,671.83/17,505.08 = 3,351.78/x
  3. Step 3: Cross multiply
    11,671.83x = 17,505.08 × 3,351.78
  4. Step 4: Simplify right side
    11,671.83x = 58,673,168.66
  5. Step 5: Solve for x
    x = 58,673,168.66/11,671.83
  6. Step 6: Final answer
    x = 5,026.90

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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.