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Finding the Third Proportional to 14,980 and 19,518

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Solution

The third proportional to 14,980 and 19,518 is: 25,430.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980 : 19,518 = 19,518 : x
  2. Step 2: Convert to fraction form
    14,980/19,518 = 19,518/x
  3. Step 3: Cross multiply
    14,980x = 19,518 × 19,518
  4. Step 4: Simplify right side
    14,980x = 380,952,324
  5. Step 5: Solve for x
    x = 380,952,324/14,980
  6. Step 6: Final answer
    x = 25,430.73

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.