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Finding the Fourth Proportional to 18,794.53, 25,936.45 and 10,412.65

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Solution

The fourth proportional to 18,794.53, 25,936.45 and 10,412.65 is: 14,369.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.53 : 25,936.45 = 10,412.65 : x
  2. Step 2: Convert to fraction form
    18,794.53/25,936.45 = 10,412.65/x
  3. Step 3: Cross multiply
    18,794.53x = 25,936.45 × 10,412.65
  4. Step 4: Simplify right side
    18,794.53x = 270,067,241.05
  5. Step 5: Solve for x
    x = 270,067,241.05/18,794.53
  6. Step 6: Final answer
    x = 14,369.46

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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.