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Finding the Fourth Proportional to 13,206,000.70, 18,521,993.30 and 13,206,000.70

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Solution

The fourth proportional to 13,206,000.70, 18,521,993.30 and 13,206,000.70 is: 18,521,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,000.70 : 18,521,993.30 = 13,206,000.70 : x
  2. Step 2: Convert to fraction form
    13,206,000.70/18,521,993.30 = 13,206,000.70/x
  3. Step 3: Cross multiply
    13,206,000.70x = 18,521,993.30 × 13,206,000.70
  4. Step 4: Simplify right side
    13,206,000.70x = 244,601,456,485,195.31
  5. Step 5: Solve for x
    x = 244,601,456,485,195.31/13,206,000.70
  6. Step 6: Final answer
    x = 18,521,993.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.