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Finding the Fourth Proportional to 16,211.74, 22,372.20 and 8,759.74

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Solution

The fourth proportional to 16,211.74, 22,372.20 and 8,759.74 is: 12,088.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,211.74 : 22,372.20 = 8,759.74 : x
  2. Step 2: Convert to fraction form
    16,211.74/22,372.20 = 8,759.74/x
  3. Step 3: Cross multiply
    16,211.74x = 22,372.20 × 8,759.74
  4. Step 4: Simplify right side
    16,211.74x = 195,974,499.57
  5. Step 5: Solve for x
    x = 195,974,499.57/16,211.74
  6. Step 6: Final answer
    x = 12,088.43

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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.