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Finding the Third Proportional to 790 and 1,896

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Solution

The third proportional to 790 and 1,896 is: 4,550.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    790 : 1,896 = 1,896 : x
  2. Step 2: Convert to fraction form
    790/1,896 = 1,896/x
  3. Step 3: Cross multiply
    790x = 1,896 × 1,896
  4. Step 4: Simplify right side
    790x = 3,594,816
  5. Step 5: Solve for x
    x = 3,594,816/790
  6. Step 6: Final answer
    x = 4,550.40

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.