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Finding the Third Proportional to 4,678 and 9,804

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Solution

The third proportional to 4,678 and 9,804 is: 20,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678 : 9,804 = 9,804 : x
  2. Step 2: Convert to fraction form
    4,678/9,804 = 9,804/x
  3. Step 3: Cross multiply
    4,678x = 9,804 × 9,804
  4. Step 4: Simplify right side
    4,678x = 96,118,416
  5. Step 5: Solve for x
    x = 96,118,416/4,678
  6. Step 6: Final answer
    x = 20,546.90

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.