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Finding the Third Proportional to 40,486 and 85,373

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Solution

The third proportional to 40,486 and 85,373 is: 180,026.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,486 : 85,373 = 85,373 : x
  2. Step 2: Convert to fraction form
    40,486/85,373 = 85,373/x
  3. Step 3: Cross multiply
    40,486x = 85,373 × 85,373
  4. Step 4: Simplify right side
    40,486x = 7,288,549,129
  5. Step 5: Solve for x
    x = 7,288,549,129/40,486
  6. Step 6: Final answer
    x = 180,026.41

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.