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Finding the Fourth Proportional to 36,610.12, 54,915.18 and 8,907.88

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Solution

The fourth proportional to 36,610.12, 54,915.18 and 8,907.88 is: 13,361.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,610.12 : 54,915.18 = 8,907.88 : x
  2. Step 2: Convert to fraction form
    36,610.12/54,915.18 = 8,907.88/x
  3. Step 3: Cross multiply
    36,610.12x = 54,915.18 × 8,907.88
  4. Step 4: Simplify right side
    36,610.12x = 489,177,833.62
  5. Step 5: Solve for x
    x = 489,177,833.62/36,610.12
  6. Step 6: Final answer
    x = 13,361.82

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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.