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Finding the Third Proportional to 4,904 and 7,802

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Solution

The third proportional to 4,904 and 7,802 is: 12,412.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,904 : 7,802 = 7,802 : x
  2. Step 2: Convert to fraction form
    4,904/7,802 = 7,802/x
  3. Step 3: Cross multiply
    4,904x = 7,802 × 7,802
  4. Step 4: Simplify right side
    4,904x = 60,871,204
  5. Step 5: Solve for x
    x = 60,871,204/4,904
  6. Step 6: Final answer
    x = 12,412.56

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.