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Finding the Third Proportional to 4,941 and 7,900

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Solution

The third proportional to 4,941 and 7,900 is: 12,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,941 : 7,900 = 7,900 : x
  2. Step 2: Convert to fraction form
    4,941/7,900 = 7,900/x
  3. Step 3: Cross multiply
    4,941x = 7,900 × 7,900
  4. Step 4: Simplify right side
    4,941x = 62,410,000
  5. Step 5: Solve for x
    x = 62,410,000/4,941
  6. Step 6: Final answer
    x = 12,631.05

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.