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Finding the Third Proportional to 21,672 and 46,800

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Solution

The third proportional to 21,672 and 46,800 is: 101,063.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,672 : 46,800 = 46,800 : x
  2. Step 2: Convert to fraction form
    21,672/46,800 = 46,800/x
  3. Step 3: Cross multiply
    21,672x = 46,800 × 46,800
  4. Step 4: Simplify right side
    21,672x = 2,190,240,000
  5. Step 5: Solve for x
    x = 2,190,240,000/21,672
  6. Step 6: Final answer
    x = 101,063.12

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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.