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Finding the Third Proportional to 21,682 and 46,646

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Solution

The third proportional to 21,682 and 46,646 is: 100,352.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,682 : 46,646 = 46,646 : x
  2. Step 2: Convert to fraction form
    21,682/46,646 = 46,646/x
  3. Step 3: Cross multiply
    21,682x = 46,646 × 46,646
  4. Step 4: Simplify right side
    21,682x = 2,175,849,316
  5. Step 5: Solve for x
    x = 2,175,849,316/21,682
  6. Step 6: Final answer
    x = 100,352.80

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.