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Finding the Fourth Proportional to 20,467.59, 30,717.80 and 10,609.70

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Solution

The fourth proportional to 20,467.59, 30,717.80 and 10,609.70 is: 15,923.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.59 : 30,717.80 = 10,609.70 : x
  2. Step 2: Convert to fraction form
    20,467.59/30,717.80 = 10,609.70/x
  3. Step 3: Cross multiply
    20,467.59x = 30,717.80 × 10,609.70
  4. Step 4: Simplify right side
    20,467.59x = 325,906,436.02
  5. Step 5: Solve for x
    x = 325,906,436.02/20,467.59
  6. Step 6: Final answer
    x = 15,923.05

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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.