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Finding the Third Proportional to 4,714 and 7,855

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Solution

The third proportional to 4,714 and 7,855 is: 13,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,714 : 7,855 = 7,855 : x
  2. Step 2: Convert to fraction form
    4,714/7,855 = 7,855/x
  3. Step 3: Cross multiply
    4,714x = 7,855 × 7,855
  4. Step 4: Simplify right side
    4,714x = 61,701,025
  5. Step 5: Solve for x
    x = 61,701,025/4,714
  6. Step 6: Final answer
    x = 13,088.89

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.