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Finding the Third Proportional to 39,482 and 85,716

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Solution

The third proportional to 39,482 and 85,716 is: 186,090.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,482 : 85,716 = 85,716 : x
  2. Step 2: Convert to fraction form
    39,482/85,716 = 85,716/x
  3. Step 3: Cross multiply
    39,482x = 85,716 × 85,716
  4. Step 4: Simplify right side
    39,482x = 7,347,232,656
  5. Step 5: Solve for x
    x = 7,347,232,656/39,482
  6. Step 6: Final answer
    x = 186,090.69

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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.