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Finding the Fourth Proportional to 3,351.69, 4,622.04 and 3,086.82

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Solution

The fourth proportional to 3,351.69, 4,622.04 and 3,086.82 is: 4,256.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.69 : 4,622.04 = 3,086.82 : x
  2. Step 2: Convert to fraction form
    3,351.69/4,622.04 = 3,086.82/x
  3. Step 3: Cross multiply
    3,351.69x = 4,622.04 × 3,086.82
  4. Step 4: Simplify right side
    3,351.69x = 14,267,405.51
  5. Step 5: Solve for x
    x = 14,267,405.51/3,351.69
  6. Step 6: Final answer
    x = 4,256.78

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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.