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Finding the Fourth Proportional to 2,998.44, 4,137.64 and 1,722.47

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Solution

The fourth proportional to 2,998.44, 4,137.64 and 1,722.47 is: 2,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.44 : 4,137.64 = 1,722.47 : x
  2. Step 2: Convert to fraction form
    2,998.44/4,137.64 = 1,722.47/x
  3. Step 3: Cross multiply
    2,998.44x = 4,137.64 × 1,722.47
  4. Step 4: Simplify right side
    2,998.44x = 7,126,935.78
  5. Step 5: Solve for x
    x = 7,126,935.78/2,998.44
  6. Step 6: Final answer
    x = 2,376.88

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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.