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Finding the Fourth Proportional to 5,171.99, 7,137.18 and 2,934.06

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Solution

The fourth proportional to 5,171.99, 7,137.18 and 2,934.06 is: 4,048.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.99 : 7,137.18 = 2,934.06 : x
  2. Step 2: Convert to fraction form
    5,171.99/7,137.18 = 2,934.06/x
  3. Step 3: Cross multiply
    5,171.99x = 7,137.18 × 2,934.06
  4. Step 4: Simplify right side
    5,171.99x = 20,940,914.35
  5. Step 5: Solve for x
    x = 20,940,914.35/5,171.99
  6. Step 6: Final answer
    x = 4,048.91

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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.