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Finding the Third Proportional to 20,897.63 and 40,748.63

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Solution

The third proportional to 20,897.63 and 40,748.63 is: 79,456.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.63 : 40,748.63 = 40,748.63 : x
  2. Step 2: Convert to fraction form
    20,897.63/40,748.63 = 40,748.63/x
  3. Step 3: Cross multiply
    20,897.63x = 40,748.63 × 40,748.63
  4. Step 4: Simplify right side
    20,897.63x = 1,660,450,439.39
  5. Step 5: Solve for x
    x = 1,660,450,439.39/20,897.63
  6. Step 6: Final answer
    x = 79,456.42

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.