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Finding the Third Proportional to 50,197.50 and 77,769

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Solution

The third proportional to 50,197.50 and 77,769 is: 120,484.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,197.50 : 77,769 = 77,769 : x
  2. Step 2: Convert to fraction form
    50,197.50/77,769 = 77,769/x
  3. Step 3: Cross multiply
    50,197.50x = 77,769 × 77,769
  4. Step 4: Simplify right side
    50,197.50x = 6,048,017,361
  5. Step 5: Solve for x
    x = 6,048,017,361/50,197.50
  6. Step 6: Final answer
    x = 120,484.43

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.