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Finding the Fourth Proportional to 20,594.10, 30,891.15 and 7,446.90

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Solution

The fourth proportional to 20,594.10, 30,891.15 and 7,446.90 is: 11,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.10 : 30,891.15 = 7,446.90 : x
  2. Step 2: Convert to fraction form
    20,594.10/30,891.15 = 7,446.90/x
  3. Step 3: Cross multiply
    20,594.10x = 30,891.15 × 7,446.90
  4. Step 4: Simplify right side
    20,594.10x = 230,043,304.94
  5. Step 5: Solve for x
    x = 230,043,304.94/20,594.10
  6. Step 6: Final answer
    x = 11,170.35

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Similar ratio
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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.