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Finding the Third Proportional to 6,470 and 8,103

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Solution

The third proportional to 6,470 and 8,103 is: 10,148.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,470 : 8,103 = 8,103 : x
  2. Step 2: Convert to fraction form
    6,470/8,103 = 8,103/x
  3. Step 3: Cross multiply
    6,470x = 8,103 × 8,103
  4. Step 4: Simplify right side
    6,470x = 65,658,609
  5. Step 5: Solve for x
    x = 65,658,609/6,470
  6. Step 6: Final answer
    x = 10,148.16

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Why These Related Problems?

These problems maintain the same ratio (1.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.