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Finding the Third Proportional to 6,257 and 8,910

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Solution

The third proportional to 6,257 and 8,910 is: 12,687.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,257 : 8,910 = 8,910 : x
  2. Step 2: Convert to fraction form
    6,257/8,910 = 8,910/x
  3. Step 3: Cross multiply
    6,257x = 8,910 × 8,910
  4. Step 4: Simplify right side
    6,257x = 79,388,100
  5. Step 5: Solve for x
    x = 79,388,100/6,257
  6. Step 6: Final answer
    x = 12,687.89

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.