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Finding the Third Proportional to 21,296 and 46,480

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Solution

The third proportional to 21,296 and 46,480 is: 101,445.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,296 : 46,480 = 46,480 : x
  2. Step 2: Convert to fraction form
    21,296/46,480 = 46,480/x
  3. Step 3: Cross multiply
    21,296x = 46,480 × 46,480
  4. Step 4: Simplify right side
    21,296x = 2,160,390,400
  5. Step 5: Solve for x
    x = 2,160,390,400/21,296
  6. Step 6: Final answer
    x = 101,445.83

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.