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Finding the Fourth Proportional to 3,704.52, 5,109.18 and 3,146.88

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Solution

The fourth proportional to 3,704.52, 5,109.18 and 3,146.88 is: 4,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,704.52 : 5,109.18 = 3,146.88 : x
  2. Step 2: Convert to fraction form
    3,704.52/5,109.18 = 3,146.88/x
  3. Step 3: Cross multiply
    3,704.52x = 5,109.18 × 3,146.88
  4. Step 4: Simplify right side
    3,704.52x = 16,077,976.36
  5. Step 5: Solve for x
    x = 16,077,976.36/3,704.52
  6. Step 6: Final answer
    x = 4,340.10

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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.