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Finding the Fourth Proportional to 5,530.62, 7,628.04 and 3,759.24

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Solution

The fourth proportional to 5,530.62, 7,628.04 and 3,759.24 is: 5,184.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.62 : 7,628.04 = 3,759.24 : x
  2. Step 2: Convert to fraction form
    5,530.62/7,628.04 = 3,759.24/x
  3. Step 3: Cross multiply
    5,530.62x = 7,628.04 × 3,759.24
  4. Step 4: Simplify right side
    5,530.62x = 28,675,633.09
  5. Step 5: Solve for x
    x = 28,675,633.09/5,530.62
  6. Step 6: Final answer
    x = 5,184.89

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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.