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Finding the Fourth Proportional to 4,718.66, 7,074.61 and 2,218.44

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Solution

The fourth proportional to 4,718.66, 7,074.61 and 2,218.44 is: 3,326.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.66 : 7,074.61 = 2,218.44 : x
  2. Step 2: Convert to fraction form
    4,718.66/7,074.61 = 2,218.44/x
  3. Step 3: Cross multiply
    4,718.66x = 7,074.61 × 2,218.44
  4. Step 4: Simplify right side
    4,718.66x = 15,694,579.00
  5. Step 5: Solve for x
    x = 15,694,579.00/4,718.66
  6. Step 6: Final answer
    x = 3,326.07

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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.