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Finding the Third Proportional to 36,333 and 78,210

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Solution

The third proportional to 36,333 and 78,210 is: 168,353.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,333 : 78,210 = 78,210 : x
  2. Step 2: Convert to fraction form
    36,333/78,210 = 78,210/x
  3. Step 3: Cross multiply
    36,333x = 78,210 × 78,210
  4. Step 4: Simplify right side
    36,333x = 6,116,804,100
  5. Step 5: Solve for x
    x = 6,116,804,100/36,333
  6. Step 6: Final answer
    x = 168,353.95

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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.