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Finding the Third Proportional to 21,741 and 47,649

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Solution

The third proportional to 21,741 and 47,649 is: 104,430.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,741 : 47,649 = 47,649 : x
  2. Step 2: Convert to fraction form
    21,741/47,649 = 47,649/x
  3. Step 3: Cross multiply
    21,741x = 47,649 × 47,649
  4. Step 4: Simplify right side
    21,741x = 2,270,427,201
  5. Step 5: Solve for x
    x = 2,270,427,201/21,741
  6. Step 6: Final answer
    x = 104,430.67

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.