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Finding the Third Proportional to 3,185,428.50 and 6,930,729

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Solution

The third proportional to 3,185,428.50 and 6,930,729 is: 15,079,605.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185,428.50 : 6,930,729 = 6,930,729 : x
  2. Step 2: Convert to fraction form
    3,185,428.50/6,930,729 = 6,930,729/x
  3. Step 3: Cross multiply
    3,185,428.50x = 6,930,729 × 6,930,729
  4. Step 4: Simplify right side
    3,185,428.50x = 48,035,004,471,441
  5. Step 5: Solve for x
    x = 48,035,004,471,441/3,185,428.50
  6. Step 6: Final answer
    x = 15,079,605.29

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.