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Finding the Fourth Proportional to 3,431.08, 4,734.54 and 2,104.84

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Solution

The fourth proportional to 3,431.08, 4,734.54 and 2,104.84 is: 2,904.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.08 : 4,734.54 = 2,104.84 : x
  2. Step 2: Convert to fraction form
    3,431.08/4,734.54 = 2,104.84/x
  3. Step 3: Cross multiply
    3,431.08x = 4,734.54 × 2,104.84
  4. Step 4: Simplify right side
    3,431.08x = 9,965,449.17
  5. Step 5: Solve for x
    x = 9,965,449.17/3,431.08
  6. Step 6: Final answer
    x = 2,904.46

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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.