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Finding the Fourth Proportional to 3,192.66, 4,789.22 and 852.62

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Solution

The fourth proportional to 3,192.66, 4,789.22 and 852.62 is: 1,278.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.66 : 4,789.22 = 852.62 : x
  2. Step 2: Convert to fraction form
    3,192.66/4,789.22 = 852.62/x
  3. Step 3: Cross multiply
    3,192.66x = 4,789.22 × 852.62
  4. Step 4: Simplify right side
    3,192.66x = 4,083,356.55
  5. Step 5: Solve for x
    x = 4,083,356.55/3,192.66
  6. Step 6: Final answer
    x = 1,278.98

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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.