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Finding the Fourth Proportional to 16,859.57, 25,276.87 and 8,086.13

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Solution

The fourth proportional to 16,859.57, 25,276.87 and 8,086.13 is: 12,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,859.57 : 25,276.87 = 8,086.13 : x
  2. Step 2: Convert to fraction form
    16,859.57/25,276.87 = 8,086.13/x
  3. Step 3: Cross multiply
    16,859.57x = 25,276.87 × 8,086.13
  4. Step 4: Simplify right side
    16,859.57x = 204,392,056.81
  5. Step 5: Solve for x
    x = 204,392,056.81/16,859.57
  6. Step 6: Final answer
    x = 12,123.21

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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.