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Finding the Fourth Proportional to 3,859.04, 5,760.62 and 3,391.96

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Solution

The fourth proportional to 3,859.04, 5,760.62 and 3,391.96 is: 5,063.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.04 : 5,760.62 = 3,391.96 : x
  2. Step 2: Convert to fraction form
    3,859.04/5,760.62 = 3,391.96/x
  3. Step 3: Cross multiply
    3,859.04x = 5,760.62 × 3,391.96
  4. Step 4: Simplify right side
    3,859.04x = 19,539,792.62
  5. Step 5: Solve for x
    x = 19,539,792.62/3,859.04
  6. Step 6: Final answer
    x = 5,063.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.