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Finding the Third Proportional to 2,119.50 and 5,265

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Solution

The third proportional to 2,119.50 and 5,265 is: 13,078.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.50 : 5,265 = 5,265 : x
  2. Step 2: Convert to fraction form
    2,119.50/5,265 = 5,265/x
  3. Step 3: Cross multiply
    2,119.50x = 5,265 × 5,265
  4. Step 4: Simplify right side
    2,119.50x = 27,720,225
  5. Step 5: Solve for x
    x = 27,720,225/2,119.50
  6. Step 6: Final answer
    x = 13,078.66

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Why These Related Problems?

These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.