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Finding the Third Proportional to 14,090 and 21,977

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Solution

The third proportional to 14,090 and 21,977 is: 34,278.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090 : 21,977 = 21,977 : x
  2. Step 2: Convert to fraction form
    14,090/21,977 = 21,977/x
  3. Step 3: Cross multiply
    14,090x = 21,977 × 21,977
  4. Step 4: Simplify right side
    14,090x = 482,988,529
  5. Step 5: Solve for x
    x = 482,988,529/14,090
  6. Step 6: Final answer
    x = 34,278.82

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.