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Finding the Fourth Proportional to 14,694.87, 20,284.09 and 8,726.49

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Solution

The fourth proportional to 14,694.87, 20,284.09 and 8,726.49 is: 12,045.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,694.87 : 20,284.09 = 8,726.49 : x
  2. Step 2: Convert to fraction form
    14,694.87/20,284.09 = 8,726.49/x
  3. Step 3: Cross multiply
    14,694.87x = 20,284.09 × 8,726.49
  4. Step 4: Simplify right side
    14,694.87x = 177,008,908.54
  5. Step 5: Solve for x
    x = 177,008,908.54/14,694.87
  6. Step 6: Final answer
    x = 12,045.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.