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Finding the Fourth Proportional to 18,601.44, 25,682.04 and 12,934.32

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Solution

The fourth proportional to 18,601.44, 25,682.04 and 12,934.32 is: 17,857.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.44 : 25,682.04 = 12,934.32 : x
  2. Step 2: Convert to fraction form
    18,601.44/25,682.04 = 12,934.32/x
  3. Step 3: Cross multiply
    18,601.44x = 25,682.04 × 12,934.32
  4. Step 4: Simplify right side
    18,601.44x = 332,179,723.61
  5. Step 5: Solve for x
    x = 332,179,723.61/18,601.44
  6. Step 6: Final answer
    x = 17,857.74

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1.5x scale

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.