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Finding the Fourth Proportional to 18,794.80, 25,936.49 and 10,297.09

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Solution

The fourth proportional to 18,794.80, 25,936.49 and 10,297.09 is: 14,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.80 : 25,936.49 = 10,297.09 : x
  2. Step 2: Convert to fraction form
    18,794.80/25,936.49 = 10,297.09/x
  3. Step 3: Cross multiply
    18,794.80x = 25,936.49 × 10,297.09
  4. Step 4: Simplify right side
    18,794.80x = 267,070,371.81
  5. Step 5: Solve for x
    x = 267,070,371.81/18,794.80
  6. Step 6: Final answer
    x = 14,209.80

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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.