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Finding the Fourth Proportional to 16,759.20, 25,138.80 and 8,983.20

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Solution

The fourth proportional to 16,759.20, 25,138.80 and 8,983.20 is: 13,474.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,759.20 : 25,138.80 = 8,983.20 : x
  2. Step 2: Convert to fraction form
    16,759.20/25,138.80 = 8,983.20/x
  3. Step 3: Cross multiply
    16,759.20x = 25,138.80 × 8,983.20
  4. Step 4: Simplify right side
    16,759.20x = 225,826,868.16
  5. Step 5: Solve for x
    x = 225,826,868.16/16,759.20
  6. Step 6: Final answer
    x = 13,474.80

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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.