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Finding the Third Proportional to 20,664 and 45,624

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Solution

The third proportional to 20,664 and 45,624 is: 100,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664 : 45,624 = 45,624 : x
  2. Step 2: Convert to fraction form
    20,664/45,624 = 45,624/x
  3. Step 3: Cross multiply
    20,664x = 45,624 × 45,624
  4. Step 4: Simplify right side
    20,664x = 2,081,549,376
  5. Step 5: Solve for x
    x = 2,081,549,376/20,664
  6. Step 6: Final answer
    x = 100,733.13

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.