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Finding the Third Proportional to 63,623 and 100,728

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Solution

The third proportional to 63,623 and 100,728 is: 159,472.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,623 : 100,728 = 100,728 : x
  2. Step 2: Convert to fraction form
    63,623/100,728 = 100,728/x
  3. Step 3: Cross multiply
    63,623x = 100,728 × 100,728
  4. Step 4: Simplify right side
    63,623x = 10,146,129,984
  5. Step 5: Solve for x
    x = 10,146,129,984/63,623
  6. Step 6: Final answer
    x = 159,472.67

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.