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Finding the Fourth Proportional to 16,643,145.60, 24,983,380.80 and 12,873,340.80

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Solution

The fourth proportional to 16,643,145.60, 24,983,380.80 and 12,873,340.80 is: 19,324,446.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,643,145.60 : 24,983,380.80 = 12,873,340.80 : x
  2. Step 2: Convert to fraction form
    16,643,145.60/24,983,380.80 = 12,873,340.80/x
  3. Step 3: Cross multiply
    16,643,145.60x = 24,983,380.80 × 12,873,340.80
  4. Step 4: Simplify right side
    16,643,145.60x = 321,619,575,374,576.69
  5. Step 5: Solve for x
    x = 321,619,575,374,576.69/16,643,145.60
  6. Step 6: Final answer
    x = 19,324,446.42

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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.