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Finding the Fourth Proportional to 2,474.53, 3,712.32 and 914.54

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Solution

The fourth proportional to 2,474.53, 3,712.32 and 914.54 is: 1,372.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,474.53 : 3,712.32 = 914.54 : x
  2. Step 2: Convert to fraction form
    2,474.53/3,712.32 = 914.54/x
  3. Step 3: Cross multiply
    2,474.53x = 3,712.32 × 914.54
  4. Step 4: Simplify right side
    2,474.53x = 3,395,046.57
  5. Step 5: Solve for x
    x = 3,395,046.57/2,474.53
  6. Step 6: Final answer
    x = 1,372.00

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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.