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Finding the Fourth Proportional to 17,728.91, 26,568.28 and 9,834.90

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Solution

The fourth proportional to 17,728.91, 26,568.28 and 9,834.90 is: 14,738.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,728.91 : 26,568.28 = 9,834.90 : x
  2. Step 2: Convert to fraction form
    17,728.91/26,568.28 = 9,834.90/x
  3. Step 3: Cross multiply
    17,728.91x = 26,568.28 × 9,834.90
  4. Step 4: Simplify right side
    17,728.91x = 261,296,376.97
  5. Step 5: Solve for x
    x = 261,296,376.97/17,728.91
  6. Step 6: Final answer
    x = 14,738.43

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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.