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Finding the Third Proportional to 8,655.75 and 18,958.50

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Solution

The third proportional to 8,655.75 and 18,958.50 is: 41,524.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.75 : 18,958.50 = 18,958.50 : x
  2. Step 2: Convert to fraction form
    8,655.75/18,958.50 = 18,958.50/x
  3. Step 3: Cross multiply
    8,655.75x = 18,958.50 × 18,958.50
  4. Step 4: Simplify right side
    8,655.75x = 359,424,722.25
  5. Step 5: Solve for x
    x = 359,424,722.25/8,655.75
  6. Step 6: Final answer
    x = 41,524.39

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.