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Finding the Third Proportional to 8,208 and 15,376.50

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Solution

The third proportional to 8,208 and 15,376.50 is: 28,805.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208 : 15,376.50 = 15,376.50 : x
  2. Step 2: Convert to fraction form
    8,208/15,376.50 = 15,376.50/x
  3. Step 3: Cross multiply
    8,208x = 15,376.50 × 15,376.50
  4. Step 4: Simplify right side
    8,208x = 236,436,752.25
  5. Step 5: Solve for x
    x = 236,436,752.25/8,208
  6. Step 6: Final answer
    x = 28,805.65

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.