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Finding the Third Proportional to 2,645.63 and 5,813.44

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Solution

The third proportional to 2,645.63 and 5,813.44 is: 12,774.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.63 : 5,813.44 = 5,813.44 : x
  2. Step 2: Convert to fraction form
    2,645.63/5,813.44 = 5,813.44/x
  3. Step 3: Cross multiply
    2,645.63x = 5,813.44 × 5,813.44
  4. Step 4: Simplify right side
    2,645.63x = 33,796,055.57
  5. Step 5: Solve for x
    x = 33,796,055.57/2,645.63
  6. Step 6: Final answer
    x = 12,774.32

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.