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Finding the Third Proportional to 7,664 and 11,850

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Solution

The third proportional to 7,664 and 11,850 is: 18,322.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664 : 11,850 = 11,850 : x
  2. Step 2: Convert to fraction form
    7,664/11,850 = 11,850/x
  3. Step 3: Cross multiply
    7,664x = 11,850 × 11,850
  4. Step 4: Simplify right side
    7,664x = 140,422,500
  5. Step 5: Solve for x
    x = 140,422,500/7,664
  6. Step 6: Final answer
    x = 18,322.35

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.