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Finding the Fourth Proportional to 2,276.54, 3,414.64 and 889.62

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Solution

The fourth proportional to 2,276.54, 3,414.64 and 889.62 is: 1,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.54 : 3,414.64 = 889.62 : x
  2. Step 2: Convert to fraction form
    2,276.54/3,414.64 = 889.62/x
  3. Step 3: Cross multiply
    2,276.54x = 3,414.64 × 889.62
  4. Step 4: Simplify right side
    2,276.54x = 3,037,732.04
  5. Step 5: Solve for x
    x = 3,037,732.04/2,276.54
  6. Step 6: Final answer
    x = 1,334.36

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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.