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Finding the Fourth Proportional to 27,805.87, 41,700.12 and 8,086.42

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Solution

The fourth proportional to 27,805.87, 41,700.12 and 8,086.42 is: 12,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,805.87 : 41,700.12 = 8,086.42 : x
  2. Step 2: Convert to fraction form
    27,805.87/41,700.12 = 8,086.42/x
  3. Step 3: Cross multiply
    27,805.87x = 41,700.12 × 8,086.42
  4. Step 4: Simplify right side
    27,805.87x = 337,204,684.37
  5. Step 5: Solve for x
    x = 337,204,684.37/27,805.87
  6. Step 6: Final answer
    x = 12,127.10

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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.