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Finding the Fourth Proportional to 6,940.92, 10,407.06 and 3,241.56

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Solution

The fourth proportional to 6,940.92, 10,407.06 and 3,241.56 is: 4,860.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.92 : 10,407.06 = 3,241.56 : x
  2. Step 2: Convert to fraction form
    6,940.92/10,407.06 = 3,241.56/x
  3. Step 3: Cross multiply
    6,940.92x = 10,407.06 × 3,241.56
  4. Step 4: Simplify right side
    6,940.92x = 33,735,109.41
  5. Step 5: Solve for x
    x = 33,735,109.41/6,940.92
  6. Step 6: Final answer
    x = 4,860.32

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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.