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Finding the Fourth Proportional to 3,326.80, 4,993.80 and 2,095.60

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Solution

The fourth proportional to 3,326.80, 4,993.80 and 2,095.60 is: 3,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.80 : 4,993.80 = 2,095.60 : x
  2. Step 2: Convert to fraction form
    3,326.80/4,993.80 = 2,095.60/x
  3. Step 3: Cross multiply
    3,326.80x = 4,993.80 × 2,095.60
  4. Step 4: Simplify right side
    3,326.80x = 10,465,007.28
  5. Step 5: Solve for x
    x = 10,465,007.28/3,326.80
  6. Step 6: Final answer
    x = 3,145.67

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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.