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Finding the Third Proportional to 6,783 and 9,910

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Solution

The third proportional to 6,783 and 9,910 is: 14,478.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,783 : 9,910 = 9,910 : x
  2. Step 2: Convert to fraction form
    6,783/9,910 = 9,910/x
  3. Step 3: Cross multiply
    6,783x = 9,910 × 9,910
  4. Step 4: Simplify right side
    6,783x = 98,208,100
  5. Step 5: Solve for x
    x = 98,208,100/6,783
  6. Step 6: Final answer
    x = 14,478.56

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.