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Finding the Third Proportional to 21,232 and 31,227

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Solution

The third proportional to 21,232 and 31,227 is: 45,927.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232 : 31,227 = 31,227 : x
  2. Step 2: Convert to fraction form
    21,232/31,227 = 31,227/x
  3. Step 3: Cross multiply
    21,232x = 31,227 × 31,227
  4. Step 4: Simplify right side
    21,232x = 975,125,529
  5. Step 5: Solve for x
    x = 975,125,529/21,232
  6. Step 6: Final answer
    x = 45,927.16

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.