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Finding the Third Proportional to 9,712 and 20,960

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Solution

The third proportional to 9,712 and 20,960 is: 45,234.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,712 : 20,960 = 20,960 : x
  2. Step 2: Convert to fraction form
    9,712/20,960 = 20,960/x
  3. Step 3: Cross multiply
    9,712x = 20,960 × 20,960
  4. Step 4: Simplify right side
    9,712x = 439,321,600
  5. Step 5: Solve for x
    x = 439,321,600/9,712
  6. Step 6: Final answer
    x = 45,234.93

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.