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Finding the Third Proportional to 2,430 and 5,163

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Solution

The third proportional to 2,430 and 5,163 is: 10,969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430 : 5,163 = 5,163 : x
  2. Step 2: Convert to fraction form
    2,430/5,163 = 5,163/x
  3. Step 3: Cross multiply
    2,430x = 5,163 × 5,163
  4. Step 4: Simplify right side
    2,430x = 26,656,569
  5. Step 5: Solve for x
    x = 26,656,569/2,430
  6. Step 6: Final answer
    x = 10,969.78

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.