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Finding the Third Proportional to 28,802 and 47,031

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Solution

The third proportional to 28,802 and 47,031 is: 76,797.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,802 : 47,031 = 47,031 : x
  2. Step 2: Convert to fraction form
    28,802/47,031 = 47,031/x
  3. Step 3: Cross multiply
    28,802x = 47,031 × 47,031
  4. Step 4: Simplify right side
    28,802x = 2,211,914,961
  5. Step 5: Solve for x
    x = 2,211,914,961/28,802
  6. Step 6: Final answer
    x = 76,797.27

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.