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Finding the Fourth Proportional to 17,680.57, 26,524.57 and 5,199.55

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Solution

The fourth proportional to 17,680.57, 26,524.57 and 5,199.55 is: 7,800.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,680.57 : 26,524.57 = 5,199.55 : x
  2. Step 2: Convert to fraction form
    17,680.57/26,524.57 = 5,199.55/x
  3. Step 3: Cross multiply
    17,680.57x = 26,524.57 × 5,199.55
  4. Step 4: Simplify right side
    17,680.57x = 137,915,672.09
  5. Step 5: Solve for x
    x = 137,915,672.09/17,680.57
  6. Step 6: Final answer
    x = 7,800.41

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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.