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Finding the Fourth Proportional to 8,329.43, 12,500.31 and 3,946.90

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Solution

The fourth proportional to 8,329.43, 12,500.31 and 3,946.90 is: 5,923.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329.43 : 12,500.31 = 3,946.90 : x
  2. Step 2: Convert to fraction form
    8,329.43/12,500.31 = 3,946.90/x
  3. Step 3: Cross multiply
    8,329.43x = 12,500.31 × 3,946.90
  4. Step 4: Simplify right side
    8,329.43x = 49,337,442.29
  5. Step 5: Solve for x
    x = 49,337,442.29/8,329.43
  6. Step 6: Final answer
    x = 5,923.27

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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.