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Finding the Fourth Proportional to 3,674.94, 5,071.47 and 1,996.35

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Solution

The fourth proportional to 3,674.94, 5,071.47 and 1,996.35 is: 2,754.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,674.94 : 5,071.47 = 1,996.35 : x
  2. Step 2: Convert to fraction form
    3,674.94/5,071.47 = 1,996.35/x
  3. Step 3: Cross multiply
    3,674.94x = 5,071.47 × 1,996.35
  4. Step 4: Simplify right side
    3,674.94x = 10,124,429.13
  5. Step 5: Solve for x
    x = 10,124,429.13/3,674.94
  6. Step 6: Final answer
    x = 2,754.99

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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.