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Finding the Third Proportional to 21,578 and 46,624

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Solution

The third proportional to 21,578 and 46,624 is: 100,741.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,578 : 46,624 = 46,624 : x
  2. Step 2: Convert to fraction form
    21,578/46,624 = 46,624/x
  3. Step 3: Cross multiply
    21,578x = 46,624 × 46,624
  4. Step 4: Simplify right side
    21,578x = 2,173,797,376
  5. Step 5: Solve for x
    x = 2,173,797,376/21,578
  6. Step 6: Final answer
    x = 100,741.37

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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.