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Finding the Third Proportional to 21,010 and 31,954

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Solution

The third proportional to 21,010 and 31,954 is: 48,598.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010 : 31,954 = 31,954 : x
  2. Step 2: Convert to fraction form
    21,010/31,954 = 31,954/x
  3. Step 3: Cross multiply
    21,010x = 31,954 × 31,954
  4. Step 4: Simplify right side
    21,010x = 1,021,058,116
  5. Step 5: Solve for x
    x = 1,021,058,116/21,010
  6. Step 6: Final answer
    x = 48,598.67

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.