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Finding the Third Proportional to 3,929.63 and 9,334.69

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Solution

The third proportional to 3,929.63 and 9,334.69 is: 22,174.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.63 : 9,334.69 = 9,334.69 : x
  2. Step 2: Convert to fraction form
    3,929.63/9,334.69 = 9,334.69/x
  3. Step 3: Cross multiply
    3,929.63x = 9,334.69 × 9,334.69
  4. Step 4: Simplify right side
    3,929.63x = 87,136,390.72
  5. Step 5: Solve for x
    x = 87,136,390.72/3,929.63
  6. Step 6: Final answer
    x = 22,174.23

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.