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Finding the Fourth Proportional to 3,673.75, 5,069.77 and 1,995.15

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Solution

The fourth proportional to 3,673.75, 5,069.77 and 1,995.15 is: 2,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,673.75 : 5,069.77 = 1,995.15 : x
  2. Step 2: Convert to fraction form
    3,673.75/5,069.77 = 1,995.15/x
  3. Step 3: Cross multiply
    3,673.75x = 5,069.77 × 1,995.15
  4. Step 4: Simplify right side
    3,673.75x = 10,114,951.62
  5. Step 5: Solve for x
    x = 10,114,951.62/3,673.75
  6. Step 6: Final answer
    x = 2,753.30

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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.