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Finding the Third Proportional to 7,422 and 10,317

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Solution

The third proportional to 7,422 and 10,317 is: 14,341.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422 : 10,317 = 10,317 : x
  2. Step 2: Convert to fraction form
    7,422/10,317 = 10,317/x
  3. Step 3: Cross multiply
    7,422x = 10,317 × 10,317
  4. Step 4: Simplify right side
    7,422x = 106,440,489
  5. Step 5: Solve for x
    x = 106,440,489/7,422
  6. Step 6: Final answer
    x = 14,341.21

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.