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Finding the Fourth Proportional to 2,313.06, 3,467.76 and 851.41

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Solution

The fourth proportional to 2,313.06, 3,467.76 and 851.41 is: 1,276.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.06 : 3,467.76 = 851.41 : x
  2. Step 2: Convert to fraction form
    2,313.06/3,467.76 = 851.41/x
  3. Step 3: Cross multiply
    2,313.06x = 3,467.76 × 851.41
  4. Step 4: Simplify right side
    2,313.06x = 2,952,485.54
  5. Step 5: Solve for x
    x = 2,952,485.54/2,313.06
  6. Step 6: Final answer
    x = 1,276.44

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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.