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Finding the Fourth Proportional to 17,002.80, 25,479.30 and 15,247.80

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Solution

The fourth proportional to 17,002.80, 25,479.30 and 15,247.80 is: 22,849.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,002.80 : 25,479.30 = 15,247.80 : x
  2. Step 2: Convert to fraction form
    17,002.80/25,479.30 = 15,247.80/x
  3. Step 3: Cross multiply
    17,002.80x = 25,479.30 × 15,247.80
  4. Step 4: Simplify right side
    17,002.80x = 388,503,270.54
  5. Step 5: Solve for x
    x = 388,503,270.54/17,002.80
  6. Step 6: Final answer
    x = 22,849.37

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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.