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Finding the Fourth Proportional to 2,718.54, 4,075.96 and 1,074.64

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Solution

The fourth proportional to 2,718.54, 4,075.96 and 1,074.64 is: 1,611.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.54 : 4,075.96 = 1,074.64 : x
  2. Step 2: Convert to fraction form
    2,718.54/4,075.96 = 1,074.64/x
  3. Step 3: Cross multiply
    2,718.54x = 4,075.96 × 1,074.64
  4. Step 4: Simplify right side
    2,718.54x = 4,380,189.65
  5. Step 5: Solve for x
    x = 4,380,189.65/2,718.54
  6. Step 6: Final answer
    x = 1,611.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.