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Finding the Third Proportional to 6,811,732.50 and 11,352,415.50

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Solution

The third proportional to 6,811,732.50 and 11,352,415.50 is: 18,919,905.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811,732.50 : 11,352,415.50 = 11,352,415.50 : x
  2. Step 2: Convert to fraction form
    6,811,732.50/11,352,415.50 = 11,352,415.50/x
  3. Step 3: Cross multiply
    6,811,732.50x = 11,352,415.50 × 11,352,415.50
  4. Step 4: Simplify right side
    6,811,732.50x = 128,877,337,684,640.25
  5. Step 5: Solve for x
    x = 128,877,337,684,640.25/6,811,732.50
  6. Step 6: Final answer
    x = 18,919,905.87

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.