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Finding the Fourth Proportional to 65,915.87, 98,908.67 and 35,951.75

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Solution

The fourth proportional to 65,915.87, 98,908.67 and 35,951.75 is: 53,946.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,915.87 : 98,908.67 = 35,951.75 : x
  2. Step 2: Convert to fraction form
    65,915.87/98,908.67 = 35,951.75/x
  3. Step 3: Cross multiply
    65,915.87x = 98,908.67 × 35,951.75
  4. Step 4: Simplify right side
    65,915.87x = 3,555,939,372.01
  5. Step 5: Solve for x
    x = 3,555,939,372.01/65,915.87
  6. Step 6: Final answer
    x = 53,946.63

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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.