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Finding the Third Proportional to 14,640 and 22,620

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Solution

The third proportional to 14,640 and 22,620 is: 34,949.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640 : 22,620 = 22,620 : x
  2. Step 2: Convert to fraction form
    14,640/22,620 = 22,620/x
  3. Step 3: Cross multiply
    14,640x = 22,620 × 22,620
  4. Step 4: Simplify right side
    14,640x = 511,664,400
  5. Step 5: Solve for x
    x = 511,664,400/14,640
  6. Step 6: Final answer
    x = 34,949.75

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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.