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Finding the Fourth Proportional to 20,483.43, 30,725.02 and 8,004.70

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Solution

The fourth proportional to 20,483.43, 30,725.02 and 8,004.70 is: 12,007.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.43 : 30,725.02 = 8,004.70 : x
  2. Step 2: Convert to fraction form
    20,483.43/30,725.02 = 8,004.70/x
  3. Step 3: Cross multiply
    20,483.43x = 30,725.02 × 8,004.70
  4. Step 4: Simplify right side
    20,483.43x = 245,944,567.59
  5. Step 5: Solve for x
    x = 245,944,567.59/20,483.43
  6. Step 6: Final answer
    x = 12,007.00

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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.