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Finding the Third Proportional to 4,115 and 6,364

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Solution

The third proportional to 4,115 and 6,364 is: 9,842.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115 : 6,364 = 6,364 : x
  2. Step 2: Convert to fraction form
    4,115/6,364 = 6,364/x
  3. Step 3: Cross multiply
    4,115x = 6,364 × 6,364
  4. Step 4: Simplify right side
    4,115x = 40,500,496
  5. Step 5: Solve for x
    x = 40,500,496/4,115
  6. Step 6: Final answer
    x = 9,842.16

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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.