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Finding the Third Proportional to 7,708.63 and 16,222.75

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Solution

The third proportional to 7,708.63 and 16,222.75 is: 34,140.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.63 : 16,222.75 = 16,222.75 : x
  2. Step 2: Convert to fraction form
    7,708.63/16,222.75 = 16,222.75/x
  3. Step 3: Cross multiply
    7,708.63x = 16,222.75 × 16,222.75
  4. Step 4: Simplify right side
    7,708.63x = 263,177,617.56
  5. Step 5: Solve for x
    x = 263,177,617.56/7,708.63
  6. Step 6: Final answer
    x = 34,140.67

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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.