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Finding the Third Proportional to 5,712 and 12,261

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Solution

The third proportional to 5,712 and 12,261 is: 26,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712 : 12,261 = 12,261 : x
  2. Step 2: Convert to fraction form
    5,712/12,261 = 12,261/x
  3. Step 3: Cross multiply
    5,712x = 12,261 × 12,261
  4. Step 4: Simplify right side
    5,712x = 150,332,121
  5. Step 5: Solve for x
    x = 150,332,121/5,712
  6. Step 6: Final answer
    x = 26,318.65

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.