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Finding the Third Proportional to 12,309.75 and 19,095.75

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Solution

The third proportional to 12,309.75 and 19,095.75 is: 29,622.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309.75 : 19,095.75 = 19,095.75 : x
  2. Step 2: Convert to fraction form
    12,309.75/19,095.75 = 19,095.75/x
  3. Step 3: Cross multiply
    12,309.75x = 19,095.75 × 19,095.75
  4. Step 4: Simplify right side
    12,309.75x = 364,647,668.06
  5. Step 5: Solve for x
    x = 364,647,668.06/12,309.75
  6. Step 6: Final answer
    x = 29,622.67

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.