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Finding the Fourth Proportional to 18,493.26, 27,739.90 and 6,181.26

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Solution

The fourth proportional to 18,493.26, 27,739.90 and 6,181.26 is: 9,271.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.26 : 27,739.90 = 6,181.26 : x
  2. Step 2: Convert to fraction form
    18,493.26/27,739.90 = 6,181.26/x
  3. Step 3: Cross multiply
    18,493.26x = 27,739.90 × 6,181.26
  4. Step 4: Simplify right side
    18,493.26x = 171,467,534.27
  5. Step 5: Solve for x
    x = 171,467,534.27/18,493.26
  6. Step 6: Final answer
    x = 9,271.89

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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.