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Finding the Third Proportional to 4,000 and 9,238

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Solution

The third proportional to 4,000 and 9,238 is: 21,335.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000 : 9,238 = 9,238 : x
  2. Step 2: Convert to fraction form
    4,000/9,238 = 9,238/x
  3. Step 3: Cross multiply
    4,000x = 9,238 × 9,238
  4. Step 4: Simplify right side
    4,000x = 85,340,644
  5. Step 5: Solve for x
    x = 85,340,644/4,000
  6. Step 6: Final answer
    x = 21,335.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.