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Finding the Third Proportional to 18,296 and 39,488

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Solution

The third proportional to 18,296 and 39,488 is: 85,226.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296 : 39,488 = 39,488 : x
  2. Step 2: Convert to fraction form
    18,296/39,488 = 39,488/x
  3. Step 3: Cross multiply
    18,296x = 39,488 × 39,488
  4. Step 4: Simplify right side
    18,296x = 1,559,302,144
  5. Step 5: Solve for x
    x = 1,559,302,144/18,296
  6. Step 6: Final answer
    x = 85,226.40

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.