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Finding the Fourth Proportional to 18,490.88, 25,634.72 and 17,493.44

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Solution

The fourth proportional to 18,490.88, 25,634.72 and 17,493.44 is: 24,251.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.88 : 25,634.72 = 17,493.44 : x
  2. Step 2: Convert to fraction form
    18,490.88/25,634.72 = 17,493.44/x
  3. Step 3: Cross multiply
    18,490.88x = 25,634.72 × 17,493.44
  4. Step 4: Simplify right side
    18,490.88x = 448,439,436.24
  5. Step 5: Solve for x
    x = 448,439,436.24/18,490.88
  6. Step 6: Final answer
    x = 24,251.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.