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Finding the Third Proportional to 39,416 and 85,382

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Solution

The third proportional to 39,416 and 85,382 is: 184,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,416 : 85,382 = 85,382 : x
  2. Step 2: Convert to fraction form
    39,416/85,382 = 85,382/x
  3. Step 3: Cross multiply
    39,416x = 85,382 × 85,382
  4. Step 4: Simplify right side
    39,416x = 7,290,085,924
  5. Step 5: Solve for x
    x = 7,290,085,924/39,416
  6. Step 6: Final answer
    x = 184,952.45

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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.