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Finding the Third Proportional to 2,872 and 4,307

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Solution

The third proportional to 2,872 and 4,307 is: 6,459.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872 : 4,307 = 4,307 : x
  2. Step 2: Convert to fraction form
    2,872/4,307 = 4,307/x
  3. Step 3: Cross multiply
    2,872x = 4,307 × 4,307
  4. Step 4: Simplify right side
    2,872x = 18,550,249
  5. Step 5: Solve for x
    x = 18,550,249/2,872
  6. Step 6: Final answer
    x = 6,459.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.