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Finding the Fourth Proportional to 3,192.83, 4,789.25 and 852.85

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Solution

The fourth proportional to 3,192.83, 4,789.25 and 852.85 is: 1,279.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.83 : 4,789.25 = 852.85 : x
  2. Step 2: Convert to fraction form
    3,192.83/4,789.25 = 852.85/x
  3. Step 3: Cross multiply
    3,192.83x = 4,789.25 × 852.85
  4. Step 4: Simplify right side
    3,192.83x = 4,084,511.86
  5. Step 5: Solve for x
    x = 4,084,511.86/3,192.83
  6. Step 6: Final answer
    x = 1,279.28

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1.5x scale

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.