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Finding the Third Proportional to 7,647.75 and 13,619.25

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Solution

The third proportional to 7,647.75 and 13,619.25 is: 24,253.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647.75 : 13,619.25 = 13,619.25 : x
  2. Step 2: Convert to fraction form
    7,647.75/13,619.25 = 13,619.25/x
  3. Step 3: Cross multiply
    7,647.75x = 13,619.25 × 13,619.25
  4. Step 4: Simplify right side
    7,647.75x = 185,483,970.56
  5. Step 5: Solve for x
    x = 185,483,970.56/7,647.75
  6. Step 6: Final answer
    x = 24,253.40

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.