Home / 7,078.66-10,621.33-3,382.02

Finding the Fourth Proportional to 7,078.66, 10,621.33 and 3,382.02

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Solution

The fourth proportional to 7,078.66, 10,621.33 and 3,382.02 is: 5,074.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.66 : 10,621.33 = 3,382.02 : x
  2. Step 2: Convert to fraction form
    7,078.66/10,621.33 = 3,382.02/x
  3. Step 3: Cross multiply
    7,078.66x = 10,621.33 × 3,382.02
  4. Step 4: Simplify right side
    7,078.66x = 35,921,542.03
  5. Step 5: Solve for x
    x = 35,921,542.03/7,078.66
  6. Step 6: Final answer
    x = 5,074.63

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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.