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Finding the Fourth Proportional to 9,379.88, 14,069.81 and 3,760.09

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Solution

The fourth proportional to 9,379.88, 14,069.81 and 3,760.09 is: 5,640.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.88 : 14,069.81 = 3,760.09 : x
  2. Step 2: Convert to fraction form
    9,379.88/14,069.81 = 3,760.09/x
  3. Step 3: Cross multiply
    9,379.88x = 14,069.81 × 3,760.09
  4. Step 4: Simplify right side
    9,379.88x = 52,903,712.01
  5. Step 5: Solve for x
    x = 52,903,712.01/9,379.88
  6. Step 6: Final answer
    x = 5,640.13

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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.