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Finding the Third Proportional to 9,216 and 11,664

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Solution

The third proportional to 9,216 and 11,664 is: 14,762.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,216 : 11,664 = 11,664 : x
  2. Step 2: Convert to fraction form
    9,216/11,664 = 11,664/x
  3. Step 3: Cross multiply
    9,216x = 11,664 × 11,664
  4. Step 4: Simplify right side
    9,216x = 136,048,896
  5. Step 5: Solve for x
    x = 136,048,896/9,216
  6. Step 6: Final answer
    x = 14,762.25

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.