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Finding the Fourth Proportional to 3,674.74, 5,071.12 and 1,996.13

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Solution

The fourth proportional to 3,674.74, 5,071.12 and 1,996.13 is: 2,754.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,674.74 : 5,071.12 = 1,996.13 : x
  2. Step 2: Convert to fraction form
    3,674.74/5,071.12 = 1,996.13/x
  3. Step 3: Cross multiply
    3,674.74x = 5,071.12 × 1,996.13
  4. Step 4: Simplify right side
    3,674.74x = 10,122,629.94
  5. Step 5: Solve for x
    x = 10,122,629.94/3,674.74
  6. Step 6: Final answer
    x = 2,754.65

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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.