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Finding the Third Proportional to 4,345 and 6,731

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Solution

The third proportional to 4,345 and 6,731 is: 10,427.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,345 : 6,731 = 6,731 : x
  2. Step 2: Convert to fraction form
    4,345/6,731 = 6,731/x
  3. Step 3: Cross multiply
    4,345x = 6,731 × 6,731
  4. Step 4: Simplify right side
    4,345x = 45,306,361
  5. Step 5: Solve for x
    x = 45,306,361/4,345
  6. Step 6: Final answer
    x = 10,427.24

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.