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Finding the Fourth Proportional to 18,997,662, 28,496,493 and 8,360,094

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Solution

The fourth proportional to 18,997,662, 28,496,493 and 8,360,094 is: 12,540,141

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997,662 : 28,496,493 = 8,360,094 : x
  2. Step 2: Convert to fraction form
    18,997,662/28,496,493 = 8,360,094/x
  3. Step 3: Cross multiply
    18,997,662x = 28,496,493 × 8,360,094
  4. Step 4: Simplify right side
    18,997,662x = 238,233,360,150,342
  5. Step 5: Solve for x
    x = 238,233,360,150,342/18,997,662
  6. Step 6: Final answer
    x = 12,540,141

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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.