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Finding the Fourth Proportional to 7,927.22, 11,892.20 and 2,662.74

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Solution

The fourth proportional to 7,927.22, 11,892.20 and 2,662.74 is: 3,994.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,927.22 : 11,892.20 = 2,662.74 : x
  2. Step 2: Convert to fraction form
    7,927.22/11,892.20 = 2,662.74/x
  3. Step 3: Cross multiply
    7,927.22x = 11,892.20 × 2,662.74
  4. Step 4: Simplify right side
    7,927.22x = 31,665,843.28
  5. Step 5: Solve for x
    x = 31,665,843.28/7,927.22
  6. Step 6: Final answer
    x = 3,994.57

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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.