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Finding the Fourth Proportional to 17,963.20, 26,949.60 and 16,028.80

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Solution

The fourth proportional to 17,963.20, 26,949.60 and 16,028.80 is: 24,047.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,963.20 : 26,949.60 = 16,028.80 : x
  2. Step 2: Convert to fraction form
    17,963.20/26,949.60 = 16,028.80/x
  3. Step 3: Cross multiply
    17,963.20x = 26,949.60 × 16,028.80
  4. Step 4: Simplify right side
    17,963.20x = 431,969,748.48
  5. Step 5: Solve for x
    x = 431,969,748.48/17,963.20
  6. Step 6: Final answer
    x = 24,047.48

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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.