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Finding the Third Proportional to 9,792 and 11,040

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Solution

The third proportional to 9,792 and 11,040 is: 12,447.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,792 : 11,040 = 11,040 : x
  2. Step 2: Convert to fraction form
    9,792/11,040 = 11,040/x
  3. Step 3: Cross multiply
    9,792x = 11,040 × 11,040
  4. Step 4: Simplify right side
    9,792x = 121,881,600
  5. Step 5: Solve for x
    x = 121,881,600/9,792
  6. Step 6: Final answer
    x = 12,447.06

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.