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Finding the Third Proportional to 56,912 and 122,246

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Solution

The third proportional to 56,912 and 122,246 is: 262,582.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,912 : 122,246 = 122,246 : x
  2. Step 2: Convert to fraction form
    56,912/122,246 = 122,246/x
  3. Step 3: Cross multiply
    56,912x = 122,246 × 122,246
  4. Step 4: Simplify right side
    56,912x = 14,944,084,516
  5. Step 5: Solve for x
    x = 14,944,084,516/56,912
  6. Step 6: Final answer
    x = 262,582.31

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.