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Finding the Fourth Proportional to 5,749.62, 7,934.23 and 3,515.23

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Solution

The fourth proportional to 5,749.62, 7,934.23 and 3,515.23 is: 4,850.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,749.62 : 7,934.23 = 3,515.23 : x
  2. Step 2: Convert to fraction form
    5,749.62/7,934.23 = 3,515.23/x
  3. Step 3: Cross multiply
    5,749.62x = 7,934.23 × 3,515.23
  4. Step 4: Simplify right side
    5,749.62x = 27,890,643.32
  5. Step 5: Solve for x
    x = 27,890,643.32/5,749.62
  6. Step 6: Final answer
    x = 4,850.87

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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.