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Finding the Fourth Proportional to 7,397.80, 11,096.70 and 4,481.80

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Solution

The fourth proportional to 7,397.80, 11,096.70 and 4,481.80 is: 6,722.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,397.80 : 11,096.70 = 4,481.80 : x
  2. Step 2: Convert to fraction form
    7,397.80/11,096.70 = 4,481.80/x
  3. Step 3: Cross multiply
    7,397.80x = 11,096.70 × 4,481.80
  4. Step 4: Simplify right side
    7,397.80x = 49,733,190.06
  5. Step 5: Solve for x
    x = 49,733,190.06/7,397.80
  6. Step 6: Final answer
    x = 6,722.70

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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.