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Finding the Fourth Proportional to 2,994.87, 4,133.90 and 2,679.57

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Solution

The fourth proportional to 2,994.87, 4,133.90 and 2,679.57 is: 3,698.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,994.87 : 4,133.90 = 2,679.57 : x
  2. Step 2: Convert to fraction form
    2,994.87/4,133.90 = 2,679.57/x
  3. Step 3: Cross multiply
    2,994.87x = 4,133.90 × 2,679.57
  4. Step 4: Simplify right side
    2,994.87x = 11,077,074.42
  5. Step 5: Solve for x
    x = 11,077,074.42/2,994.87
  6. Step 6: Final answer
    x = 3,698.68

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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.