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Finding the Third Proportional to 7,863 and 16,819.50

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Solution

The third proportional to 7,863 and 16,819.50 is: 35,978.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863 : 16,819.50 = 16,819.50 : x
  2. Step 2: Convert to fraction form
    7,863/16,819.50 = 16,819.50/x
  3. Step 3: Cross multiply
    7,863x = 16,819.50 × 16,819.50
  4. Step 4: Simplify right side
    7,863x = 282,895,580.25
  5. Step 5: Solve for x
    x = 282,895,580.25/7,863
  6. Step 6: Final answer
    x = 35,978.07

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.