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Finding the Fourth Proportional to 3,672.65, 5,068.26 and 1,994.05

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Solution

The fourth proportional to 3,672.65, 5,068.26 and 1,994.05 is: 2,751.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.65 : 5,068.26 = 1,994.05 : x
  2. Step 2: Convert to fraction form
    3,672.65/5,068.26 = 1,994.05/x
  3. Step 3: Cross multiply
    3,672.65x = 5,068.26 × 1,994.05
  4. Step 4: Simplify right side
    3,672.65x = 10,106,370.19
  5. Step 5: Solve for x
    x = 10,106,370.19/3,672.65
  6. Step 6: Final answer
    x = 2,751.79

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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.