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Finding the Fourth Proportional to 7,379.74, 10,184.10 and 4,022.60

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Solution

The fourth proportional to 7,379.74, 10,184.10 and 4,022.60 is: 5,551.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.74 : 10,184.10 = 4,022.60 : x
  2. Step 2: Convert to fraction form
    7,379.74/10,184.10 = 4,022.60/x
  3. Step 3: Cross multiply
    7,379.74x = 10,184.10 × 4,022.60
  4. Step 4: Simplify right side
    7,379.74x = 40,966,494.65
  5. Step 5: Solve for x
    x = 40,966,494.65/7,379.74
  6. Step 6: Final answer
    x = 5,551.21

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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.