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Finding the Third Proportional to 9,947.81 and 20,852.44

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Solution

The third proportional to 9,947.81 and 20,852.44 is: 43,710.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,947.81 : 20,852.44 = 20,852.44 : x
  2. Step 2: Convert to fraction form
    9,947.81/20,852.44 = 20,852.44/x
  3. Step 3: Cross multiply
    9,947.81x = 20,852.44 × 20,852.44
  4. Step 4: Simplify right side
    9,947.81x = 434,824,149.69
  5. Step 5: Solve for x
    x = 434,824,149.69/9,947.81
  6. Step 6: Final answer
    x = 43,710.53

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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.