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Finding the Fourth Proportional to 3,672.70, 5,068.31 and 1,994.09

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Solution

The fourth proportional to 3,672.70, 5,068.31 and 1,994.09 is: 2,751.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.70 : 5,068.31 = 1,994.09 : x
  2. Step 2: Convert to fraction form
    3,672.70/5,068.31 = 1,994.09/x
  3. Step 3: Cross multiply
    3,672.70x = 5,068.31 × 1,994.09
  4. Step 4: Simplify right side
    3,672.70x = 10,106,668.99
  5. Step 5: Solve for x
    x = 10,106,668.99/3,672.70
  6. Step 6: Final answer
    x = 2,751.84

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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.