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Finding the Third Proportional to 8,928 and 11,792

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Solution

The third proportional to 8,928 and 11,792 is: 15,574.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928 : 11,792 = 11,792 : x
  2. Step 2: Convert to fraction form
    8,928/11,792 = 11,792/x
  3. Step 3: Cross multiply
    8,928x = 11,792 × 11,792
  4. Step 4: Simplify right side
    8,928x = 139,051,264
  5. Step 5: Solve for x
    x = 139,051,264/8,928
  6. Step 6: Final answer
    x = 15,574.74

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.