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Finding the Third Proportional to 39,756.50 and 84,253

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Solution

The third proportional to 39,756.50 and 84,253 is: 178,551.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,756.50 : 84,253 = 84,253 : x
  2. Step 2: Convert to fraction form
    39,756.50/84,253 = 84,253/x
  3. Step 3: Cross multiply
    39,756.50x = 84,253 × 84,253
  4. Step 4: Simplify right side
    39,756.50x = 7,098,568,009
  5. Step 5: Solve for x
    x = 7,098,568,009/39,756.50
  6. Step 6: Final answer
    x = 178,551.13

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.