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Finding the Fourth Proportional to 6,880.40, 9,494.92 and 3,736.56

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Solution

The fourth proportional to 6,880.40, 9,494.92 and 3,736.56 is: 5,156.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.40 : 9,494.92 = 3,736.56 : x
  2. Step 2: Convert to fraction form
    6,880.40/9,494.92 = 3,736.56/x
  3. Step 3: Cross multiply
    6,880.40x = 9,494.92 × 3,736.56
  4. Step 4: Simplify right side
    6,880.40x = 35,478,338.28
  5. Step 5: Solve for x
    x = 35,478,338.28/6,880.40
  6. Step 6: Final answer
    x = 5,156.44

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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.