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Finding the Fourth Proportional to 3,454.94, 5,174.16 and 1,892.60

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Solution

The fourth proportional to 3,454.94, 5,174.16 and 1,892.60 is: 2,834.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454.94 : 5,174.16 = 1,892.60 : x
  2. Step 2: Convert to fraction form
    3,454.94/5,174.16 = 1,892.60/x
  3. Step 3: Cross multiply
    3,454.94x = 5,174.16 × 1,892.60
  4. Step 4: Simplify right side
    3,454.94x = 9,792,615.22
  5. Step 5: Solve for x
    x = 9,792,615.22/3,454.94
  6. Step 6: Final answer
    x = 2,834.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.