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Finding the Third Proportional to 4,242 and 6,306

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Solution

The third proportional to 4,242 and 6,306 is: 9,374.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242 : 6,306 = 6,306 : x
  2. Step 2: Convert to fraction form
    4,242/6,306 = 6,306/x
  3. Step 3: Cross multiply
    4,242x = 6,306 × 6,306
  4. Step 4: Simplify right side
    4,242x = 39,765,636
  5. Step 5: Solve for x
    x = 39,765,636/4,242
  6. Step 6: Final answer
    x = 9,374.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.