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Finding the Third Proportional to 2,070 and 3,790

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Solution

The third proportional to 2,070 and 3,790 is: 6,939.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070 : 3,790 = 3,790 : x
  2. Step 2: Convert to fraction form
    2,070/3,790 = 3,790/x
  3. Step 3: Cross multiply
    2,070x = 3,790 × 3,790
  4. Step 4: Simplify right side
    2,070x = 14,364,100
  5. Step 5: Solve for x
    x = 14,364,100/2,070
  6. Step 6: Final answer
    x = 6,939.18

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Why These Related Problems?

These problems maintain the same ratio (1.83) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.