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Finding the Fourth Proportional to 3,293.87, 4,965.71 and 3,115.26

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Solution

The fourth proportional to 3,293.87, 4,965.71 and 3,115.26 is: 4,696.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,293.87 : 4,965.71 = 3,115.26 : x
  2. Step 2: Convert to fraction form
    3,293.87/4,965.71 = 3,115.26/x
  3. Step 3: Cross multiply
    3,293.87x = 4,965.71 × 3,115.26
  4. Step 4: Simplify right side
    3,293.87x = 15,469,462.16
  5. Step 5: Solve for x
    x = 15,469,462.16/3,293.87
  6. Step 6: Final answer
    x = 4,696.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.