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Finding the Third Proportional to 28,172 and 61,924

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Solution

The third proportional to 28,172 and 61,924 is: 136,113.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172 : 61,924 = 61,924 : x
  2. Step 2: Convert to fraction form
    28,172/61,924 = 61,924/x
  3. Step 3: Cross multiply
    28,172x = 61,924 × 61,924
  4. Step 4: Simplify right side
    28,172x = 3,834,581,776
  5. Step 5: Solve for x
    x = 3,834,581,776/28,172
  6. Step 6: Final answer
    x = 136,113.23

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.