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Finding the Third Proportional to 1,930 and 5,013

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Solution

The third proportional to 1,930 and 5,013 is: 13,020.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930 : 5,013 = 5,013 : x
  2. Step 2: Convert to fraction form
    1,930/5,013 = 5,013/x
  3. Step 3: Cross multiply
    1,930x = 5,013 × 5,013
  4. Step 4: Simplify right side
    1,930x = 25,130,169
  5. Step 5: Solve for x
    x = 25,130,169/1,930
  6. Step 6: Final answer
    x = 13,020.81

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.