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Finding the Third Proportional to 16,818.26 and 36,438.61

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Solution

The third proportional to 16,818.26 and 36,438.61 is: 78,948.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,818.26 : 36,438.61 = 36,438.61 : x
  2. Step 2: Convert to fraction form
    16,818.26/36,438.61 = 36,438.61/x
  3. Step 3: Cross multiply
    16,818.26x = 36,438.61 × 36,438.61
  4. Step 4: Simplify right side
    16,818.26x = 1,327,772,253.18
  5. Step 5: Solve for x
    x = 1,327,772,253.18/16,818.26
  6. Step 6: Final answer
    x = 78,948.26

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.