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Finding the Fourth Proportional to 3,740.94, 5,162.94 and 2,169.09

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Solution

The fourth proportional to 3,740.94, 5,162.94 and 2,169.09 is: 2,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.94 : 5,162.94 = 2,169.09 : x
  2. Step 2: Convert to fraction form
    3,740.94/5,162.94 = 2,169.09/x
  3. Step 3: Cross multiply
    3,740.94x = 5,162.94 × 2,169.09
  4. Step 4: Simplify right side
    3,740.94x = 11,198,881.52
  5. Step 5: Solve for x
    x = 11,198,881.52/3,740.94
  6. Step 6: Final answer
    x = 2,993.60

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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.