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Finding the Third Proportional to 7,647.75 and 18,177.75

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Solution

The third proportional to 7,647.75 and 18,177.75 is: 43,206.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647.75 : 18,177.75 = 18,177.75 : x
  2. Step 2: Convert to fraction form
    7,647.75/18,177.75 = 18,177.75/x
  3. Step 3: Cross multiply
    7,647.75x = 18,177.75 × 18,177.75
  4. Step 4: Simplify right side
    7,647.75x = 330,430,595.06
  5. Step 5: Solve for x
    x = 330,430,595.06/7,647.75
  6. Step 6: Final answer
    x = 43,206.25

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.