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Finding the Fourth Proportional to 11,062.53, 16,578.74 and 6,379.61

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Solution

The fourth proportional to 11,062.53, 16,578.74 and 6,379.61 is: 9,560.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,062.53 : 16,578.74 = 6,379.61 : x
  2. Step 2: Convert to fraction form
    11,062.53/16,578.74 = 6,379.61/x
  3. Step 3: Cross multiply
    11,062.53x = 16,578.74 × 6,379.61
  4. Step 4: Simplify right side
    11,062.53x = 105,765,828.55
  5. Step 5: Solve for x
    x = 105,765,828.55/11,062.53
  6. Step 6: Final answer
    x = 9,560.73

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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.