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Finding the Third Proportional to 53,115 and 80,084

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Solution

The third proportional to 53,115 and 80,084 is: 120,746.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,115 : 80,084 = 80,084 : x
  2. Step 2: Convert to fraction form
    53,115/80,084 = 80,084/x
  3. Step 3: Cross multiply
    53,115x = 80,084 × 80,084
  4. Step 4: Simplify right side
    53,115x = 6,413,447,056
  5. Step 5: Solve for x
    x = 6,413,447,056/53,115
  6. Step 6: Final answer
    x = 120,746.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.