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Finding the Fourth Proportional to 12,211.44, 16,853.34 and 6,834.18

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Solution

The fourth proportional to 12,211.44, 16,853.34 and 6,834.18 is: 9,432.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.44 : 16,853.34 = 6,834.18 : x
  2. Step 2: Convert to fraction form
    12,211.44/16,853.34 = 6,834.18/x
  3. Step 3: Cross multiply
    12,211.44x = 16,853.34 × 6,834.18
  4. Step 4: Simplify right side
    12,211.44x = 115,178,759.16
  5. Step 5: Solve for x
    x = 115,178,759.16/12,211.44
  6. Step 6: Final answer
    x = 9,432.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.