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Finding the Third Proportional to 893 and 1,228

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Solution

The third proportional to 893 and 1,228 is: 1,688.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    893 : 1,228 = 1,228 : x
  2. Step 2: Convert to fraction form
    893/1,228 = 1,228/x
  3. Step 3: Cross multiply
    893x = 1,228 × 1,228
  4. Step 4: Simplify right side
    893x = 1,507,984
  5. Step 5: Solve for x
    x = 1,507,984/893
  6. Step 6: Final answer
    x = 1,688.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.