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Finding the Fourth Proportional to 16,638.14, 22,928.94 and 11,914.22

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Solution

The fourth proportional to 16,638.14, 22,928.94 and 11,914.22 is: 16,418.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,638.14 : 22,928.94 = 11,914.22 : x
  2. Step 2: Convert to fraction form
    16,638.14/22,928.94 = 11,914.22/x
  3. Step 3: Cross multiply
    16,638.14x = 22,928.94 × 11,914.22
  4. Step 4: Simplify right side
    16,638.14x = 273,180,435.53
  5. Step 5: Solve for x
    x = 273,180,435.53/16,638.14
  6. Step 6: Final answer
    x = 16,418.93

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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.