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Finding the Third Proportional to 28,243 and 61,135

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Solution

The third proportional to 28,243 and 61,135 is: 132,333.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243 : 61,135 = 61,135 : x
  2. Step 2: Convert to fraction form
    28,243/61,135 = 61,135/x
  3. Step 3: Cross multiply
    28,243x = 61,135 × 61,135
  4. Step 4: Simplify right side
    28,243x = 3,737,488,225
  5. Step 5: Solve for x
    x = 3,737,488,225/28,243
  6. Step 6: Final answer
    x = 132,333.26

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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.