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Finding the Third Proportional to 10,396 and 15,900

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Solution

The third proportional to 10,396 and 15,900 is: 24,318.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,396 : 15,900 = 15,900 : x
  2. Step 2: Convert to fraction form
    10,396/15,900 = 15,900/x
  3. Step 3: Cross multiply
    10,396x = 15,900 × 15,900
  4. Step 4: Simplify right side
    10,396x = 252,810,000
  5. Step 5: Solve for x
    x = 252,810,000/10,396
  6. Step 6: Final answer
    x = 24,318.01

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.