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Finding the Third Proportional to 6,142.50 and 8,235

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Solution

The third proportional to 6,142.50 and 8,235 is: 11,040.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,142.50 : 8,235 = 8,235 : x
  2. Step 2: Convert to fraction form
    6,142.50/8,235 = 8,235/x
  3. Step 3: Cross multiply
    6,142.50x = 8,235 × 8,235
  4. Step 4: Simplify right side
    6,142.50x = 67,815,225
  5. Step 5: Solve for x
    x = 67,815,225/6,142.50
  6. Step 6: Final answer
    x = 11,040.33

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.