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Finding the Third Proportional to 9,690 and 22,761

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Solution

The third proportional to 9,690 and 22,761 is: 53,463.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,690 : 22,761 = 22,761 : x
  2. Step 2: Convert to fraction form
    9,690/22,761 = 22,761/x
  3. Step 3: Cross multiply
    9,690x = 22,761 × 22,761
  4. Step 4: Simplify right side
    9,690x = 518,063,121
  5. Step 5: Solve for x
    x = 518,063,121/9,690
  6. Step 6: Final answer
    x = 53,463.69

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.