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Finding the Fourth Proportional to 7,439.70, 11,093.82 and 7,372.92

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Solution

The fourth proportional to 7,439.70, 11,093.82 and 7,372.92 is: 10,994.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.70 : 11,093.82 = 7,372.92 : x
  2. Step 2: Convert to fraction form
    7,439.70/11,093.82 = 7,372.92/x
  3. Step 3: Cross multiply
    7,439.70x = 11,093.82 × 7,372.92
  4. Step 4: Simplify right side
    7,439.70x = 81,793,847.35
  5. Step 5: Solve for x
    x = 81,793,847.35/7,439.70
  6. Step 6: Final answer
    x = 10,994.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.