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Finding the Fourth Proportional to 8,373.63, 12,563.18 and 4,211.49

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Solution

The fourth proportional to 8,373.63, 12,563.18 and 4,211.49 is: 6,318.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,373.63 : 12,563.18 = 4,211.49 : x
  2. Step 2: Convert to fraction form
    8,373.63/12,563.18 = 4,211.49/x
  3. Step 3: Cross multiply
    8,373.63x = 12,563.18 × 4,211.49
  4. Step 4: Simplify right side
    8,373.63x = 52,909,685.88
  5. Step 5: Solve for x
    x = 52,909,685.88/8,373.63
  6. Step 6: Final answer
    x = 6,318.61

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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.