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Finding the Third Proportional to 2,953 and 4,131

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Solution

The third proportional to 2,953 and 4,131 is: 5,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953 : 4,131 = 4,131 : x
  2. Step 2: Convert to fraction form
    2,953/4,131 = 4,131/x
  3. Step 3: Cross multiply
    2,953x = 4,131 × 4,131
  4. Step 4: Simplify right side
    2,953x = 17,065,161
  5. Step 5: Solve for x
    x = 17,065,161/2,953
  6. Step 6: Final answer
    x = 5,778.92

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.