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Finding the Third Proportional to 9,321 and 20,484

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Solution

The third proportional to 9,321 and 20,484 is: 45,016.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321 : 20,484 = 20,484 : x
  2. Step 2: Convert to fraction form
    9,321/20,484 = 20,484/x
  3. Step 3: Cross multiply
    9,321x = 20,484 × 20,484
  4. Step 4: Simplify right side
    9,321x = 419,594,256
  5. Step 5: Solve for x
    x = 419,594,256/9,321
  6. Step 6: Final answer
    x = 45,016.01

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.