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Finding the Fourth Proportional to 16,813.70, 25,184.10 and 10,908.80

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Solution

The fourth proportional to 16,813.70, 25,184.10 and 10,908.80 is: 16,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,813.70 : 25,184.10 = 10,908.80 : x
  2. Step 2: Convert to fraction form
    16,813.70/25,184.10 = 10,908.80/x
  3. Step 3: Cross multiply
    16,813.70x = 25,184.10 × 10,908.80
  4. Step 4: Simplify right side
    16,813.70x = 274,728,310.08
  5. Step 5: Solve for x
    x = 274,728,310.08/16,813.70
  6. Step 6: Final answer
    x = 16,339.55

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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.