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Finding the Third Proportional to 4,994 and 7,643

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Solution

The third proportional to 4,994 and 7,643 is: 11,697.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,994 : 7,643 = 7,643 : x
  2. Step 2: Convert to fraction form
    4,994/7,643 = 7,643/x
  3. Step 3: Cross multiply
    4,994x = 7,643 × 7,643
  4. Step 4: Simplify right side
    4,994x = 58,415,449
  5. Step 5: Solve for x
    x = 58,415,449/4,994
  6. Step 6: Final answer
    x = 11,697.13

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.