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Finding the Third Proportional to 38,436 and 81,726

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Solution

The third proportional to 38,436 and 81,726 is: 173,773.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,436 : 81,726 = 81,726 : x
  2. Step 2: Convert to fraction form
    38,436/81,726 = 81,726/x
  3. Step 3: Cross multiply
    38,436x = 81,726 × 81,726
  4. Step 4: Simplify right side
    38,436x = 6,679,139,076
  5. Step 5: Solve for x
    x = 6,679,139,076/38,436
  6. Step 6: Final answer
    x = 173,773.00

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.