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Finding the Third Proportional to 21,172 and 46,376

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Solution

The third proportional to 21,172 and 46,376 is: 101,583.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,172 : 46,376 = 46,376 : x
  2. Step 2: Convert to fraction form
    21,172/46,376 = 46,376/x
  3. Step 3: Cross multiply
    21,172x = 46,376 × 46,376
  4. Step 4: Simplify right side
    21,172x = 2,150,733,376
  5. Step 5: Solve for x
    x = 2,150,733,376/21,172
  6. Step 6: Final answer
    x = 101,583.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.