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Finding the Fourth Proportional to 3,074.60, 4,609.20 and 2,746.55

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Solution

The fourth proportional to 3,074.60, 4,609.20 and 2,746.55 is: 4,117.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.60 : 4,609.20 = 2,746.55 : x
  2. Step 2: Convert to fraction form
    3,074.60/4,609.20 = 2,746.55/x
  3. Step 3: Cross multiply
    3,074.60x = 4,609.20 × 2,746.55
  4. Step 4: Simplify right side
    3,074.60x = 12,659,398.26
  5. Step 5: Solve for x
    x = 12,659,398.26/3,074.60
  6. Step 6: Final answer
    x = 4,117.41

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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.