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Finding the Third Proportional to 7,131 and 16,392

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Solution

The third proportional to 7,131 and 16,392 is: 37,680.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131 : 16,392 = 16,392 : x
  2. Step 2: Convert to fraction form
    7,131/16,392 = 16,392/x
  3. Step 3: Cross multiply
    7,131x = 16,392 × 16,392
  4. Step 4: Simplify right side
    7,131x = 268,697,664
  5. Step 5: Solve for x
    x = 268,697,664/7,131
  6. Step 6: Final answer
    x = 37,680.22

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.