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Finding the Fourth Proportional to 5,379.88, 7,425 and 3,022.18

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Solution

The fourth proportional to 5,379.88, 7,425 and 3,022.18 is: 4,171.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.88 : 7,425 = 3,022.18 : x
  2. Step 2: Convert to fraction form
    5,379.88/7,425 = 3,022.18/x
  3. Step 3: Cross multiply
    5,379.88x = 7,425 × 3,022.18
  4. Step 4: Simplify right side
    5,379.88x = 22,439,686.50
  5. Step 5: Solve for x
    x = 22,439,686.50/5,379.88
  6. Step 6: Final answer
    x = 4,171.04

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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.