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Finding the Fourth Proportional to 18,362,710.60, 27,544,065.90 and 16,378,664.20

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Solution

The fourth proportional to 18,362,710.60, 27,544,065.90 and 16,378,664.20 is: 24,567,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362,710.60 : 27,544,065.90 = 16,378,664.20 : x
  2. Step 2: Convert to fraction form
    18,362,710.60/27,544,065.90 = 16,378,664.20/x
  3. Step 3: Cross multiply
    18,362,710.60x = 27,544,065.90 × 16,378,664.20
  4. Step 4: Simplify right side
    18,362,710.60x = 451,135,006,078,770.75
  5. Step 5: Solve for x
    x = 451,135,006,078,770.75/18,362,710.60
  6. Step 6: Final answer
    x = 24,567,996.30

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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.