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Finding the Third Proportional to 18,042.75 and 25,758

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Solution

The third proportional to 18,042.75 and 25,758 is: 36,772.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,042.75 : 25,758 = 25,758 : x
  2. Step 2: Convert to fraction form
    18,042.75/25,758 = 25,758/x
  3. Step 3: Cross multiply
    18,042.75x = 25,758 × 25,758
  4. Step 4: Simplify right side
    18,042.75x = 663,474,564
  5. Step 5: Solve for x
    x = 663,474,564/18,042.75
  6. Step 6: Final answer
    x = 36,772.36

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.