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Finding the Fourth Proportional to 17,309.80, 25,983.90 and 16,181.80

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Solution

The fourth proportional to 17,309.80, 25,983.90 and 16,181.80 is: 24,290.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,309.80 : 25,983.90 = 16,181.80 : x
  2. Step 2: Convert to fraction form
    17,309.80/25,983.90 = 16,181.80/x
  3. Step 3: Cross multiply
    17,309.80x = 25,983.90 × 16,181.80
  4. Step 4: Simplify right side
    17,309.80x = 420,466,273.02
  5. Step 5: Solve for x
    x = 420,466,273.02/17,309.80
  6. Step 6: Final answer
    x = 24,290.65

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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.