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Finding the Third Proportional to 11,445.75 and 17,739

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Solution

The third proportional to 11,445.75 and 17,739 is: 27,492.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.75 : 17,739 = 17,739 : x
  2. Step 2: Convert to fraction form
    11,445.75/17,739 = 17,739/x
  3. Step 3: Cross multiply
    11,445.75x = 17,739 × 17,739
  4. Step 4: Simplify right side
    11,445.75x = 314,672,121
  5. Step 5: Solve for x
    x = 314,672,121/11,445.75
  6. Step 6: Final answer
    x = 27,492.49

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.