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Finding the Third Proportional to 2,912.63 and 5,577.19

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Solution

The third proportional to 2,912.63 and 5,577.19 is: 10,679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.63 : 5,577.19 = 5,577.19 : x
  2. Step 2: Convert to fraction form
    2,912.63/5,577.19 = 5,577.19/x
  3. Step 3: Cross multiply
    2,912.63x = 5,577.19 × 5,577.19
  4. Step 4: Simplify right side
    2,912.63x = 31,105,020.41
  5. Step 5: Solve for x
    x = 31,105,020.41/2,912.63
  6. Step 6: Final answer
    x = 10,679.38

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.