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Finding the Fourth Proportional to 10,693,583.60, 16,040,375.40 and 3,121,314.80

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Solution

The fourth proportional to 10,693,583.60, 16,040,375.40 and 3,121,314.80 is: 4,681,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,693,583.60 : 16,040,375.40 = 3,121,314.80 : x
  2. Step 2: Convert to fraction form
    10,693,583.60/16,040,375.40 = 3,121,314.80/x
  3. Step 3: Cross multiply
    10,693,583.60x = 16,040,375.40 × 3,121,314.80
  4. Step 4: Simplify right side
    10,693,583.60x = 50,067,061,133,575.92
  5. Step 5: Solve for x
    x = 50,067,061,133,575.92/10,693,583.60
  6. Step 6: Final answer
    x = 4,681,972.20

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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.