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Finding the Fourth Proportional to 30,626.58, 45,941.43 and 8,439.46

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Solution

The fourth proportional to 30,626.58, 45,941.43 and 8,439.46 is: 12,659.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,626.58 : 45,941.43 = 8,439.46 : x
  2. Step 2: Convert to fraction form
    30,626.58/45,941.43 = 8,439.46/x
  3. Step 3: Cross multiply
    30,626.58x = 45,941.43 × 8,439.46
  4. Step 4: Simplify right side
    30,626.58x = 387,720,949.90
  5. Step 5: Solve for x
    x = 387,720,949.90/30,626.58
  6. Step 6: Final answer
    x = 12,659.62

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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.