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Finding the Fourth Proportional to 18,092.90, 27,144.15 and 6,404.90

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Solution

The fourth proportional to 18,092.90, 27,144.15 and 6,404.90 is: 9,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,092.90 : 27,144.15 = 6,404.90 : x
  2. Step 2: Convert to fraction form
    18,092.90/27,144.15 = 6,404.90/x
  3. Step 3: Cross multiply
    18,092.90x = 27,144.15 × 6,404.90
  4. Step 4: Simplify right side
    18,092.90x = 173,855,566.34
  5. Step 5: Solve for x
    x = 173,855,566.34/18,092.90
  6. Step 6: Final answer
    x = 9,609.05

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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.