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Finding the Third Proportional to 1,918 and 3,347

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Solution

The third proportional to 1,918 and 3,347 is: 5,840.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918 : 3,347 = 3,347 : x
  2. Step 2: Convert to fraction form
    1,918/3,347 = 3,347/x
  3. Step 3: Cross multiply
    1,918x = 3,347 × 3,347
  4. Step 4: Simplify right side
    1,918x = 11,202,409
  5. Step 5: Solve for x
    x = 11,202,409/1,918
  6. Step 6: Final answer
    x = 5,840.67

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.