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Finding the Third Proportional to 12,343.64 and 16,411.99

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Solution

The third proportional to 12,343.64 and 16,411.99 is: 21,821.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,343.64 : 16,411.99 = 16,411.99 : x
  2. Step 2: Convert to fraction form
    12,343.64/16,411.99 = 16,411.99/x
  3. Step 3: Cross multiply
    12,343.64x = 16,411.99 × 16,411.99
  4. Step 4: Simplify right side
    12,343.64x = 269,353,487.56
  5. Step 5: Solve for x
    x = 269,353,487.56/12,343.64
  6. Step 6: Final answer
    x = 21,821.24

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.