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Finding the Fourth Proportional to 7,179,997.60, 10,769,996.40 and 6,896,562.40

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Solution

The fourth proportional to 7,179,997.60, 10,769,996.40 and 6,896,562.40 is: 10,344,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179,997.60 : 10,769,996.40 = 6,896,562.40 : x
  2. Step 2: Convert to fraction form
    7,179,997.60/10,769,996.40 = 6,896,562.40/x
  3. Step 3: Cross multiply
    7,179,997.60x = 10,769,996.40 × 6,896,562.40
  4. Step 4: Simplify right side
    7,179,997.60x = 74,275,952,220,375.36
  5. Step 5: Solve for x
    x = 74,275,952,220,375.36/7,179,997.60
  6. Step 6: Final answer
    x = 10,344,843.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.