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Finding the Third Proportional to 10,422 and 15,213

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Solution

The third proportional to 10,422 and 15,213 is: 22,206.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422 : 15,213 = 15,213 : x
  2. Step 2: Convert to fraction form
    10,422/15,213 = 15,213/x
  3. Step 3: Cross multiply
    10,422x = 15,213 × 15,213
  4. Step 4: Simplify right side
    10,422x = 231,435,369
  5. Step 5: Solve for x
    x = 231,435,369/10,422
  6. Step 6: Final answer
    x = 22,206.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.