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Finding the Fourth Proportional to 3,382.70, 4,668.08 and 1,966.67

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Solution

The fourth proportional to 3,382.70, 4,668.08 and 1,966.67 is: 2,713.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.70 : 4,668.08 = 1,966.67 : x
  2. Step 2: Convert to fraction form
    3,382.70/4,668.08 = 1,966.67/x
  3. Step 3: Cross multiply
    3,382.70x = 4,668.08 × 1,966.67
  4. Step 4: Simplify right side
    3,382.70x = 9,180,539.72
  5. Step 5: Solve for x
    x = 9,180,539.72/3,382.70
  6. Step 6: Final answer
    x = 2,713.97

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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.