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Finding the Third Proportional to 9,358 and 18,986

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Solution

The third proportional to 9,358 and 18,986 is: 38,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,358 : 18,986 = 18,986 : x
  2. Step 2: Convert to fraction form
    9,358/18,986 = 18,986/x
  3. Step 3: Cross multiply
    9,358x = 18,986 × 18,986
  4. Step 4: Simplify right side
    9,358x = 360,468,196
  5. Step 5: Solve for x
    x = 360,468,196/9,358
  6. Step 6: Final answer
    x = 38,519.79

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.