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Finding the Third Proportional to 5,911 and 12,792

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Solution

The third proportional to 5,911 and 12,792 is: 27,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911 : 12,792 = 12,792 : x
  2. Step 2: Convert to fraction form
    5,911/12,792 = 12,792/x
  3. Step 3: Cross multiply
    5,911x = 12,792 × 12,792
  4. Step 4: Simplify right side
    5,911x = 163,635,264
  5. Step 5: Solve for x
    x = 163,635,264/5,911
  6. Step 6: Final answer
    x = 27,683.18

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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.