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Finding the Fourth Proportional to 17,717.20, 26,575.80 and 15,902.80

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Solution

The fourth proportional to 17,717.20, 26,575.80 and 15,902.80 is: 23,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,717.20 : 26,575.80 = 15,902.80 : x
  2. Step 2: Convert to fraction form
    17,717.20/26,575.80 = 15,902.80/x
  3. Step 3: Cross multiply
    17,717.20x = 26,575.80 × 15,902.80
  4. Step 4: Simplify right side
    17,717.20x = 422,629,632.24
  5. Step 5: Solve for x
    x = 422,629,632.24/17,717.20
  6. Step 6: Final answer
    x = 23,854.20

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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.