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Finding the Third Proportional to 548 and 1,402

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Solution

The third proportional to 548 and 1,402 is: 3,586.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    548 : 1,402 = 1,402 : x
  2. Step 2: Convert to fraction form
    548/1,402 = 1,402/x
  3. Step 3: Cross multiply
    548x = 1,402 × 1,402
  4. Step 4: Simplify right side
    548x = 1,965,604
  5. Step 5: Solve for x
    x = 1,965,604/548
  6. Step 6: Final answer
    x = 3,586.87

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These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.