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Finding the Third Proportional to 1,965.09 and 4,276.97

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Solution

The third proportional to 1,965.09 and 4,276.97 is: 9,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.09 : 4,276.97 = 4,276.97 : x
  2. Step 2: Convert to fraction form
    1,965.09/4,276.97 = 4,276.97/x
  3. Step 3: Cross multiply
    1,965.09x = 4,276.97 × 4,276.97
  4. Step 4: Simplify right side
    1,965.09x = 18,292,461.69
  5. Step 5: Solve for x
    x = 18,292,461.69/1,965.09
  6. Step 6: Final answer
    x = 9,308.70

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.