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Finding the Fourth Proportional to 2,372.64, 3,274.12 and 1,324.50

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Solution

The fourth proportional to 2,372.64, 3,274.12 and 1,324.50 is: 1,827.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,372.64 : 3,274.12 = 1,324.50 : x
  2. Step 2: Convert to fraction form
    2,372.64/3,274.12 = 1,324.50/x
  3. Step 3: Cross multiply
    2,372.64x = 3,274.12 × 1,324.50
  4. Step 4: Simplify right side
    2,372.64x = 4,336,571.94
  5. Step 5: Solve for x
    x = 4,336,571.94/2,372.64
  6. Step 6: Final answer
    x = 1,827.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.