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Finding the Third Proportional to 2,938 and 6,180.50

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Solution

The third proportional to 2,938 and 6,180.50 is: 13,001.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938 : 6,180.50 = 6,180.50 : x
  2. Step 2: Convert to fraction form
    2,938/6,180.50 = 6,180.50/x
  3. Step 3: Cross multiply
    2,938x = 6,180.50 × 6,180.50
  4. Step 4: Simplify right side
    2,938x = 38,198,580.25
  5. Step 5: Solve for x
    x = 38,198,580.25/2,938
  6. Step 6: Final answer
    x = 13,001.56

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.