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Finding the Fourth Proportional to 29,938.75, 44,915.76 and 8,879.56

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Solution

The fourth proportional to 29,938.75, 44,915.76 and 8,879.56 is: 13,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,938.75 : 44,915.76 = 8,879.56 : x
  2. Step 2: Convert to fraction form
    29,938.75/44,915.76 = 8,879.56/x
  3. Step 3: Cross multiply
    29,938.75x = 44,915.76 × 8,879.56
  4. Step 4: Simplify right side
    29,938.75x = 398,832,185.87
  5. Step 5: Solve for x
    x = 398,832,185.87/29,938.75
  6. Step 6: Final answer
    x = 13,321.60

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1.5x scale

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.