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Finding the Third Proportional to 4,949 and 5,357

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Solution

The third proportional to 4,949 and 5,357 is: 5,798.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949 : 5,357 = 5,357 : x
  2. Step 2: Convert to fraction form
    4,949/5,357 = 5,357/x
  3. Step 3: Cross multiply
    4,949x = 5,357 × 5,357
  4. Step 4: Simplify right side
    4,949x = 28,697,449
  5. Step 5: Solve for x
    x = 28,697,449/4,949
  6. Step 6: Final answer
    x = 5,798.64

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.