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Finding the Third Proportional to 1,918 and 3,716

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Solution

The third proportional to 1,918 and 3,716 is: 7,199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918 : 3,716 = 3,716 : x
  2. Step 2: Convert to fraction form
    1,918/3,716 = 3,716/x
  3. Step 3: Cross multiply
    1,918x = 3,716 × 3,716
  4. Step 4: Simplify right side
    1,918x = 13,808,656
  5. Step 5: Solve for x
    x = 13,808,656/1,918
  6. Step 6: Final answer
    x = 7,199.51

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Why These Related Problems?

These problems maintain the same ratio (1.94) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.