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Finding the Fourth Proportional to 17,151.80, 25,727.70 and 16,767.80

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Solution

The fourth proportional to 17,151.80, 25,727.70 and 16,767.80 is: 25,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,151.80 : 25,727.70 = 16,767.80 : x
  2. Step 2: Convert to fraction form
    17,151.80/25,727.70 = 16,767.80/x
  3. Step 3: Cross multiply
    17,151.80x = 25,727.70 × 16,767.80
  4. Step 4: Simplify right side
    17,151.80x = 431,396,928.06
  5. Step 5: Solve for x
    x = 431,396,928.06/17,151.80
  6. Step 6: Final answer
    x = 25,151.70

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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.