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Finding the Fourth Proportional to 7,494.56, 11,254.60 and 7,181.09

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Solution

The fourth proportional to 7,494.56, 11,254.60 and 7,181.09 is: 10,783.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,494.56 : 11,254.60 = 7,181.09 : x
  2. Step 2: Convert to fraction form
    7,494.56/11,254.60 = 7,181.09/x
  3. Step 3: Cross multiply
    7,494.56x = 11,254.60 × 7,181.09
  4. Step 4: Simplify right side
    7,494.56x = 80,820,290.42
  5. Step 5: Solve for x
    x = 80,820,290.42/7,494.56
  6. Step 6: Final answer
    x = 10,783.86

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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.