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Finding the Fourth Proportional to 7,441.44, 10,258.92 and 7,211.40

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Solution

The fourth proportional to 7,441.44, 10,258.92 and 7,211.40 is: 9,941.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,441.44 : 10,258.92 = 7,211.40 : x
  2. Step 2: Convert to fraction form
    7,441.44/10,258.92 = 7,211.40/x
  3. Step 3: Cross multiply
    7,441.44x = 10,258.92 × 7,211.40
  4. Step 4: Simplify right side
    7,441.44x = 73,981,175.69
  5. Step 5: Solve for x
    x = 73,981,175.69/7,441.44
  6. Step 6: Final answer
    x = 9,941.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.