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Finding the Third Proportional to 21,385 and 46,226

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Solution

The third proportional to 21,385 and 46,226 is: 99,922.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385 : 46,226 = 46,226 : x
  2. Step 2: Convert to fraction form
    21,385/46,226 = 46,226/x
  3. Step 3: Cross multiply
    21,385x = 46,226 × 46,226
  4. Step 4: Simplify right side
    21,385x = 2,136,843,076
  5. Step 5: Solve for x
    x = 2,136,843,076/21,385
  6. Step 6: Final answer
    x = 99,922.52

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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.