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Finding the Third Proportional to 13,178 and 23,430

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Solution

The third proportional to 13,178 and 23,430 is: 41,657.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178 : 23,430 = 23,430 : x
  2. Step 2: Convert to fraction form
    13,178/23,430 = 23,430/x
  3. Step 3: Cross multiply
    13,178x = 23,430 × 23,430
  4. Step 4: Simplify right side
    13,178x = 548,964,900
  5. Step 5: Solve for x
    x = 548,964,900/13,178
  6. Step 6: Final answer
    x = 41,657.68

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.