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Finding the Third Proportional to 1,911.73 and 2,706.22

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Solution

The third proportional to 1,911.73 and 2,706.22 is: 3,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.73 : 2,706.22 = 2,706.22 : x
  2. Step 2: Convert to fraction form
    1,911.73/2,706.22 = 2,706.22/x
  3. Step 3: Cross multiply
    1,911.73x = 2,706.22 × 2,706.22
  4. Step 4: Simplify right side
    1,911.73x = 7,323,641.07
  5. Step 5: Solve for x
    x = 7,323,641.07/1,911.73
  6. Step 6: Final answer
    x = 3,830.90

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.