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Finding the Fourth Proportional to 11,074.97, 16,619.94 and 8,308.41

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Solution

The fourth proportional to 11,074.97, 16,619.94 and 8,308.41 is: 12,468.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,074.97 : 16,619.94 = 8,308.41 : x
  2. Step 2: Convert to fraction form
    11,074.97/16,619.94 = 8,308.41/x
  3. Step 3: Cross multiply
    11,074.97x = 16,619.94 × 8,308.41
  4. Step 4: Simplify right side
    11,074.97x = 138,085,275.70
  5. Step 5: Solve for x
    x = 138,085,275.70/11,074.97
  6. Step 6: Final answer
    x = 12,468.24

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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.