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Finding the Third Proportional to 18,480 and 27,913

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Solution

The third proportional to 18,480 and 27,913 is: 42,161.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,480 : 27,913 = 27,913 : x
  2. Step 2: Convert to fraction form
    18,480/27,913 = 27,913/x
  3. Step 3: Cross multiply
    18,480x = 27,913 × 27,913
  4. Step 4: Simplify right side
    18,480x = 779,135,569
  5. Step 5: Solve for x
    x = 779,135,569/18,480
  6. Step 6: Final answer
    x = 42,161.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.