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Finding the Fourth Proportional to 25,274.53, 37,919.49 and 11,957.75

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Solution

The fourth proportional to 25,274.53, 37,919.49 and 11,957.75 is: 17,940.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,274.53 : 37,919.49 = 11,957.75 : x
  2. Step 2: Convert to fraction form
    25,274.53/37,919.49 = 11,957.75/x
  3. Step 3: Cross multiply
    25,274.53x = 37,919.49 × 11,957.75
  4. Step 4: Simplify right side
    25,274.53x = 453,431,781.55
  5. Step 5: Solve for x
    x = 453,431,781.55/25,274.53
  6. Step 6: Final answer
    x = 17,940.27

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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.