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Finding the Fourth Proportional to 7,976.79, 11,940.48 and 6,795.81

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Solution

The fourth proportional to 7,976.79, 11,940.48 and 6,795.81 is: 10,172.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.79 : 11,940.48 = 6,795.81 : x
  2. Step 2: Convert to fraction form
    7,976.79/11,940.48 = 6,795.81/x
  3. Step 3: Cross multiply
    7,976.79x = 11,940.48 × 6,795.81
  4. Step 4: Simplify right side
    7,976.79x = 81,145,233.39
  5. Step 5: Solve for x
    x = 81,145,233.39/7,976.79
  6. Step 6: Final answer
    x = 10,172.67

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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.