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Finding the Third Proportional to 21,632 and 31,008

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Solution

The third proportional to 21,632 and 31,008 is: 44,447.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,632 : 31,008 = 31,008 : x
  2. Step 2: Convert to fraction form
    21,632/31,008 = 31,008/x
  3. Step 3: Cross multiply
    21,632x = 31,008 × 31,008
  4. Step 4: Simplify right side
    21,632x = 961,496,064
  5. Step 5: Solve for x
    x = 961,496,064/21,632
  6. Step 6: Final answer
    x = 44,447.86

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.