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Finding the Fourth Proportional to 2,011.66, 3,019.26 and 1,684.62

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Solution

The fourth proportional to 2,011.66, 3,019.26 and 1,684.62 is: 2,528.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.66 : 3,019.26 = 1,684.62 : x
  2. Step 2: Convert to fraction form
    2,011.66/3,019.26 = 1,684.62/x
  3. Step 3: Cross multiply
    2,011.66x = 3,019.26 × 1,684.62
  4. Step 4: Simplify right side
    2,011.66x = 5,086,305.78
  5. Step 5: Solve for x
    x = 5,086,305.78/2,011.66
  6. Step 6: Final answer
    x = 2,528.41

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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.