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Finding the Third Proportional to 2,938.50 and 6,777

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Solution

The third proportional to 2,938.50 and 6,777 is: 15,629.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.50 : 6,777 = 6,777 : x
  2. Step 2: Convert to fraction form
    2,938.50/6,777 = 6,777/x
  3. Step 3: Cross multiply
    2,938.50x = 6,777 × 6,777
  4. Step 4: Simplify right side
    2,938.50x = 45,927,729
  5. Step 5: Solve for x
    x = 45,927,729/2,938.50
  6. Step 6: Final answer
    x = 15,629.65

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.