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Finding the Fourth Proportional to 18,694.62, 25,832.79 and 17,783.46

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Solution

The fourth proportional to 18,694.62, 25,832.79 and 17,783.46 is: 24,573.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,694.62 : 25,832.79 = 17,783.46 : x
  2. Step 2: Convert to fraction form
    18,694.62/25,832.79 = 17,783.46/x
  3. Step 3: Cross multiply
    18,694.62x = 25,832.79 × 17,783.46
  4. Step 4: Simplify right side
    18,694.62x = 459,396,387.65
  5. Step 5: Solve for x
    x = 459,396,387.65/18,694.62
  6. Step 6: Final answer
    x = 24,573.72

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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.