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Finding the Third Proportional to 14,980 and 16,260

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Solution

The third proportional to 14,980 and 16,260 is: 17,649.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980 : 16,260 = 16,260 : x
  2. Step 2: Convert to fraction form
    14,980/16,260 = 16,260/x
  3. Step 3: Cross multiply
    14,980x = 16,260 × 16,260
  4. Step 4: Simplify right side
    14,980x = 264,387,600
  5. Step 5: Solve for x
    x = 264,387,600/14,980
  6. Step 6: Final answer
    x = 17,649.37

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.