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Finding the Third Proportional to 16,718.50 and 36,434

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Solution

The third proportional to 16,718.50 and 36,434 is: 79,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,718.50 : 36,434 = 36,434 : x
  2. Step 2: Convert to fraction form
    16,718.50/36,434 = 36,434/x
  3. Step 3: Cross multiply
    16,718.50x = 36,434 × 36,434
  4. Step 4: Simplify right side
    16,718.50x = 1,327,436,356
  5. Step 5: Solve for x
    x = 1,327,436,356/16,718.50
  6. Step 6: Final answer
    x = 79,399.25

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.