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Finding the Fourth Proportional to 18,669,508, 28,004,262 and 4,486,084

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Solution

The fourth proportional to 18,669,508, 28,004,262 and 4,486,084 is: 6,729,126

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669,508 : 28,004,262 = 4,486,084 : x
  2. Step 2: Convert to fraction form
    18,669,508/28,004,262 = 4,486,084/x
  3. Step 3: Cross multiply
    18,669,508x = 28,004,262 × 4,486,084
  4. Step 4: Simplify right side
    18,669,508x = 125,629,471,690,008
  5. Step 5: Solve for x
    x = 125,629,471,690,008/18,669,508
  6. Step 6: Final answer
    x = 6,729,126

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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.