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Finding the Third Proportional to 10,431 and 16,393

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Solution

The third proportional to 10,431 and 16,393 is: 25,762.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431 : 16,393 = 16,393 : x
  2. Step 2: Convert to fraction form
    10,431/16,393 = 16,393/x
  3. Step 3: Cross multiply
    10,431x = 16,393 × 16,393
  4. Step 4: Simplify right side
    10,431x = 268,730,449
  5. Step 5: Solve for x
    x = 268,730,449/10,431
  6. Step 6: Final answer
    x = 25,762.67

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.