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Finding the Fourth Proportional to 3,161.97, 4,736.60 and 1,575.91

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Solution

The fourth proportional to 3,161.97, 4,736.60 and 1,575.91 is: 2,360.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.97 : 4,736.60 = 1,575.91 : x
  2. Step 2: Convert to fraction form
    3,161.97/4,736.60 = 1,575.91/x
  3. Step 3: Cross multiply
    3,161.97x = 4,736.60 × 1,575.91
  4. Step 4: Simplify right side
    3,161.97x = 7,464,455.31
  5. Step 5: Solve for x
    x = 7,464,455.31/3,161.97
  6. Step 6: Final answer
    x = 2,360.70

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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.