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Finding the Fourth Proportional to 17,252.80, 25,879.20 and 8,504.80

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Solution

The fourth proportional to 17,252.80, 25,879.20 and 8,504.80 is: 12,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,252.80 : 25,879.20 = 8,504.80 : x
  2. Step 2: Convert to fraction form
    17,252.80/25,879.20 = 8,504.80/x
  3. Step 3: Cross multiply
    17,252.80x = 25,879.20 × 8,504.80
  4. Step 4: Simplify right side
    17,252.80x = 220,097,420.16
  5. Step 5: Solve for x
    x = 220,097,420.16/17,252.80
  6. Step 6: Final answer
    x = 12,757.20

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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.