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Finding the Fourth Proportional to 7,494.56, 11,241.60 and 3,390.56

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Solution

The fourth proportional to 7,494.56, 11,241.60 and 3,390.56 is: 5,085.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,494.56 : 11,241.60 = 3,390.56 : x
  2. Step 2: Convert to fraction form
    7,494.56/11,241.60 = 3,390.56/x
  3. Step 3: Cross multiply
    7,494.56x = 11,241.60 × 3,390.56
  4. Step 4: Simplify right side
    7,494.56x = 38,115,319.30
  5. Step 5: Solve for x
    x = 38,115,319.30/7,494.56
  6. Step 6: Final answer
    x = 5,085.73

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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.