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Finding the Fourth Proportional to 63,647, 95,446.50 and 51,136.28

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Solution

The fourth proportional to 63,647, 95,446.50 and 51,136.28 is: 76,685.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,647 : 95,446.50 = 51,136.28 : x
  2. Step 2: Convert to fraction form
    63,647/95,446.50 = 51,136.28/x
  3. Step 3: Cross multiply
    63,647x = 95,446.50 × 51,136.28
  4. Step 4: Simplify right side
    63,647x = 4,880,778,949.02
  5. Step 5: Solve for x
    x = 4,880,778,949.02/63,647
  6. Step 6: Final answer
    x = 76,685.14

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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.