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Finding the Third Proportional to 3,952.50 and 8,511

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Solution

The third proportional to 3,952.50 and 8,511 is: 18,326.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.50 : 8,511 = 8,511 : x
  2. Step 2: Convert to fraction form
    3,952.50/8,511 = 8,511/x
  3. Step 3: Cross multiply
    3,952.50x = 8,511 × 8,511
  4. Step 4: Simplify right side
    3,952.50x = 72,437,121
  5. Step 5: Solve for x
    x = 72,437,121/3,952.50
  6. Step 6: Final answer
    x = 18,326.91

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.