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Finding the Fourth Proportional to 7,379.84, 10,184.09 and 4,022.48

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Solution

The fourth proportional to 7,379.84, 10,184.09 and 4,022.48 is: 5,550.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.84 : 10,184.09 = 4,022.48 : x
  2. Step 2: Convert to fraction form
    7,379.84/10,184.09 = 4,022.48/x
  3. Step 3: Cross multiply
    7,379.84x = 10,184.09 × 4,022.48
  4. Step 4: Simplify right side
    7,379.84x = 40,965,303.69
  5. Step 5: Solve for x
    x = 40,965,303.69/7,379.84
  6. Step 6: Final answer
    x = 5,550.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.