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Finding the Third Proportional to 1,219.50 and 1,668.94

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Solution

The third proportional to 1,219.50 and 1,668.94 is: 2,284.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219.50 : 1,668.94 = 1,668.94 : x
  2. Step 2: Convert to fraction form
    1,219.50/1,668.94 = 1,668.94/x
  3. Step 3: Cross multiply
    1,219.50x = 1,668.94 × 1,668.94
  4. Step 4: Simplify right side
    1,219.50x = 2,785,352.38
  5. Step 5: Solve for x
    x = 2,785,352.38/1,219.50
  6. Step 6: Final answer
    x = 2,284.01

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.