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Finding the Fourth Proportional to 3,674.50, 5,070.77 and 1,995.91

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Solution

The fourth proportional to 3,674.50, 5,070.77 and 1,995.91 is: 2,754.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,674.50 : 5,070.77 = 1,995.91 : x
  2. Step 2: Convert to fraction form
    3,674.50/5,070.77 = 1,995.91/x
  3. Step 3: Cross multiply
    3,674.50x = 5,070.77 × 1,995.91
  4. Step 4: Simplify right side
    3,674.50x = 10,120,785.38
  5. Step 5: Solve for x
    x = 10,120,785.38/3,674.50
  6. Step 6: Final answer
    x = 2,754.33

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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.