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Finding the Fourth Proportional to 5,012.82, 6,919.65 and 4,880.34

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Solution

The fourth proportional to 5,012.82, 6,919.65 and 4,880.34 is: 6,736.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,012.82 : 6,919.65 = 4,880.34 : x
  2. Step 2: Convert to fraction form
    5,012.82/6,919.65 = 4,880.34/x
  3. Step 3: Cross multiply
    5,012.82x = 6,919.65 × 4,880.34
  4. Step 4: Simplify right side
    5,012.82x = 33,770,244.68
  5. Step 5: Solve for x
    x = 33,770,244.68/5,012.82
  6. Step 6: Final answer
    x = 6,736.78

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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.