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Finding the Third Proportional to 21,406.50 and 50,553

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Solution

The third proportional to 21,406.50 and 50,553 is: 119,384.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406.50 : 50,553 = 50,553 : x
  2. Step 2: Convert to fraction form
    21,406.50/50,553 = 50,553/x
  3. Step 3: Cross multiply
    21,406.50x = 50,553 × 50,553
  4. Step 4: Simplify right side
    21,406.50x = 2,555,605,809
  5. Step 5: Solve for x
    x = 2,555,605,809/21,406.50
  6. Step 6: Final answer
    x = 119,384.57

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.