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Finding the Fourth Proportional to 4,718.66, 7,069.81 and 2,865.88

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Solution

The fourth proportional to 4,718.66, 7,069.81 and 2,865.88 is: 4,293.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.66 : 7,069.81 = 2,865.88 : x
  2. Step 2: Convert to fraction form
    4,718.66/7,069.81 = 2,865.88/x
  3. Step 3: Cross multiply
    4,718.66x = 7,069.81 × 2,865.88
  4. Step 4: Simplify right side
    4,718.66x = 20,261,227.08
  5. Step 5: Solve for x
    x = 20,261,227.08/4,718.66
  6. Step 6: Final answer
    x = 4,293.85

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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.