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Finding the Fourth Proportional to 18,563.34, 27,859.59 and 10,249.10

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Solution

The fourth proportional to 18,563.34, 27,859.59 and 10,249.10 is: 15,381.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563.34 : 27,859.59 = 10,249.10 : x
  2. Step 2: Convert to fraction form
    18,563.34/27,859.59 = 10,249.10/x
  3. Step 3: Cross multiply
    18,563.34x = 27,859.59 × 10,249.10
  4. Step 4: Simplify right side
    18,563.34x = 285,535,584.57
  5. Step 5: Solve for x
    x = 285,535,584.57/18,563.34
  6. Step 6: Final answer
    x = 15,381.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.