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Finding the Fourth Proportional to 16,859.60, 25,289.40 and 8,092.40

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Solution

The fourth proportional to 16,859.60, 25,289.40 and 8,092.40 is: 12,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,859.60 : 25,289.40 = 8,092.40 : x
  2. Step 2: Convert to fraction form
    16,859.60/25,289.40 = 8,092.40/x
  3. Step 3: Cross multiply
    16,859.60x = 25,289.40 × 8,092.40
  4. Step 4: Simplify right side
    16,859.60x = 204,651,940.56
  5. Step 5: Solve for x
    x = 204,651,940.56/16,859.60
  6. Step 6: Final answer
    x = 12,138.60

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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.