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Finding the Fourth Proportional to 20,594.20, 30,891.30 and 10,226.20

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Solution

The fourth proportional to 20,594.20, 30,891.30 and 10,226.20 is: 15,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.20 : 30,891.30 = 10,226.20 : x
  2. Step 2: Convert to fraction form
    20,594.20/30,891.30 = 10,226.20/x
  3. Step 3: Cross multiply
    20,594.20x = 30,891.30 × 10,226.20
  4. Step 4: Simplify right side
    20,594.20x = 315,900,612.06
  5. Step 5: Solve for x
    x = 315,900,612.06/20,594.20
  6. Step 6: Final answer
    x = 15,339.30

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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.