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Finding the Third Proportional to 4,058 and 6,455

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Solution

The third proportional to 4,058 and 6,455 is: 10,267.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,058 : 6,455 = 6,455 : x
  2. Step 2: Convert to fraction form
    4,058/6,455 = 6,455/x
  3. Step 3: Cross multiply
    4,058x = 6,455 × 6,455
  4. Step 4: Simplify right side
    4,058x = 41,667,025
  5. Step 5: Solve for x
    x = 41,667,025/4,058
  6. Step 6: Final answer
    x = 10,267.87

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.