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Finding the Third Proportional to 5,426,107.50 and 8,397,999.75

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Solution

The third proportional to 5,426,107.50 and 8,397,999.75 is: 12,997,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426,107.50 : 8,397,999.75 = 8,397,999.75 : x
  2. Step 2: Convert to fraction form
    5,426,107.50/8,397,999.75 = 8,397,999.75/x
  3. Step 3: Cross multiply
    5,426,107.50x = 8,397,999.75 × 8,397,999.75
  4. Step 4: Simplify right side
    5,426,107.50x = 70,526,399,801,000.06
  5. Step 5: Solve for x
    x = 70,526,399,801,000.06/5,426,107.50
  6. Step 6: Final answer
    x = 12,997,604.60

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.