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Finding the Third Proportional to 991,190.50 and 2,164,380.50

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Solution

The third proportional to 991,190.50 and 2,164,380.50 is: 4,726,178.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,190.50 : 2,164,380.50 = 2,164,380.50 : x
  2. Step 2: Convert to fraction form
    991,190.50/2,164,380.50 = 2,164,380.50/x
  3. Step 3: Cross multiply
    991,190.50x = 2,164,380.50 × 2,164,380.50
  4. Step 4: Simplify right side
    991,190.50x = 4,684,542,948,780.25
  5. Step 5: Solve for x
    x = 4,684,542,948,780.25/991,190.50
  6. Step 6: Final answer
    x = 4,726,178.22

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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.