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Finding the Fourth Proportional to 8,322,580.80, 12,484,216.80 and 2,642,644.80

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Solution

The fourth proportional to 8,322,580.80, 12,484,216.80 and 2,642,644.80 is: 3,964,076.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322,580.80 : 12,484,216.80 = 2,642,644.80 : x
  2. Step 2: Convert to fraction form
    8,322,580.80/12,484,216.80 = 2,642,644.80/x
  3. Step 3: Cross multiply
    8,322,580.80x = 12,484,216.80 × 2,642,644.80
  4. Step 4: Simplify right side
    8,322,580.80x = 32,991,350,608,592.64
  5. Step 5: Solve for x
    x = 32,991,350,608,592.64/8,322,580.80
  6. Step 6: Final answer
    x = 3,964,076.94

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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.