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Finding the Fourth Proportional to 17,942.21, 26,915.14 and 6,858.22

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Solution

The fourth proportional to 17,942.21, 26,915.14 and 6,858.22 is: 10,288.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,942.21 : 26,915.14 = 6,858.22 : x
  2. Step 2: Convert to fraction form
    17,942.21/26,915.14 = 6,858.22/x
  3. Step 3: Cross multiply
    17,942.21x = 26,915.14 × 6,858.22
  4. Step 4: Simplify right side
    17,942.21x = 184,589,951.45
  5. Step 5: Solve for x
    x = 184,589,951.45/17,942.21
  6. Step 6: Final answer
    x = 10,288.03

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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.