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Finding the Third Proportional to 3,070 and 4,191

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Solution

The third proportional to 3,070 and 4,191 is: 5,721.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070 : 4,191 = 4,191 : x
  2. Step 2: Convert to fraction form
    3,070/4,191 = 4,191/x
  3. Step 3: Cross multiply
    3,070x = 4,191 × 4,191
  4. Step 4: Simplify right side
    3,070x = 17,564,481
  5. Step 5: Solve for x
    x = 17,564,481/3,070
  6. Step 6: Final answer
    x = 5,721.33

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.