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Finding the Third Proportional to 14,912 and 18,080

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Solution

The third proportional to 14,912 and 18,080 is: 21,921.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,912 : 18,080 = 18,080 : x
  2. Step 2: Convert to fraction form
    14,912/18,080 = 18,080/x
  3. Step 3: Cross multiply
    14,912x = 18,080 × 18,080
  4. Step 4: Simplify right side
    14,912x = 326,886,400
  5. Step 5: Solve for x
    x = 326,886,400/14,912
  6. Step 6: Final answer
    x = 21,921.03

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.