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Finding the Fourth Proportional to 18,205.22, 27,264.74 and 11,611.41

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Solution

The fourth proportional to 18,205.22, 27,264.74 and 11,611.41 is: 17,389.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,205.22 : 27,264.74 = 11,611.41 : x
  2. Step 2: Convert to fraction form
    18,205.22/27,264.74 = 11,611.41/x
  3. Step 3: Cross multiply
    18,205.22x = 27,264.74 × 11,611.41
  4. Step 4: Simplify right side
    18,205.22x = 316,582,074.68
  5. Step 5: Solve for x
    x = 316,582,074.68/18,205.22
  6. Step 6: Final answer
    x = 17,389.64

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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.