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Finding the Fourth Proportional to 9,620.52, 14,379.90 and 8,361.24

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Solution

The fourth proportional to 9,620.52, 14,379.90 and 8,361.24 is: 12,497.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,620.52 : 14,379.90 = 8,361.24 : x
  2. Step 2: Convert to fraction form
    9,620.52/14,379.90 = 8,361.24/x
  3. Step 3: Cross multiply
    9,620.52x = 14,379.90 × 8,361.24
  4. Step 4: Simplify right side
    9,620.52x = 120,233,795.08
  5. Step 5: Solve for x
    x = 120,233,795.08/9,620.52
  6. Step 6: Final answer
    x = 12,497.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.