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Finding the Fourth Proportional to 2,322.64, 3,481.48 and 1,151

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Solution

The fourth proportional to 2,322.64, 3,481.48 and 1,151 is: 1,725.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,322.64 : 3,481.48 = 1,151 : x
  2. Step 2: Convert to fraction form
    2,322.64/3,481.48 = 1,151/x
  3. Step 3: Cross multiply
    2,322.64x = 3,481.48 × 1,151
  4. Step 4: Simplify right side
    2,322.64x = 4,007,183.48
  5. Step 5: Solve for x
    x = 4,007,183.48/2,322.64
  6. Step 6: Final answer
    x = 1,725.27

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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.