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Finding the Third Proportional to 39,400 and 85,363

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Solution

The third proportional to 39,400 and 85,363 is: 184,945.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,400 : 85,363 = 85,363 : x
  2. Step 2: Convert to fraction form
    39,400/85,363 = 85,363/x
  3. Step 3: Cross multiply
    39,400x = 85,363 × 85,363
  4. Step 4: Simplify right side
    39,400x = 7,286,841,769
  5. Step 5: Solve for x
    x = 7,286,841,769/39,400
  6. Step 6: Final answer
    x = 184,945.22

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.