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Finding the Fourth Proportional to 2,974.56, 4,104.74 and 1,648.24

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Solution

The fourth proportional to 2,974.56, 4,104.74 and 1,648.24 is: 2,274.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.56 : 4,104.74 = 1,648.24 : x
  2. Step 2: Convert to fraction form
    2,974.56/4,104.74 = 1,648.24/x
  3. Step 3: Cross multiply
    2,974.56x = 4,104.74 × 1,648.24
  4. Step 4: Simplify right side
    2,974.56x = 6,765,596.66
  5. Step 5: Solve for x
    x = 6,765,596.66/2,974.56
  6. Step 6: Final answer
    x = 2,274.49

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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.