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Finding the Third Proportional to 54,239 and 79,695

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Solution

The third proportional to 54,239 and 79,695 is: 117,098.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,239 : 79,695 = 79,695 : x
  2. Step 2: Convert to fraction form
    54,239/79,695 = 79,695/x
  3. Step 3: Cross multiply
    54,239x = 79,695 × 79,695
  4. Step 4: Simplify right side
    54,239x = 6,351,293,025
  5. Step 5: Solve for x
    x = 6,351,293,025/54,239
  6. Step 6: Final answer
    x = 117,098.27

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.