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Finding the Fourth Proportional to 16,211.48, 22,371.85 and 8,759.48

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Solution

The fourth proportional to 16,211.48, 22,371.85 and 8,759.48 is: 12,088.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,211.48 : 22,371.85 = 8,759.48 : x
  2. Step 2: Convert to fraction form
    16,211.48/22,371.85 = 8,759.48/x
  3. Step 3: Cross multiply
    16,211.48x = 22,371.85 × 8,759.48
  4. Step 4: Simplify right side
    16,211.48x = 195,965,806.67
  5. Step 5: Solve for x
    x = 195,965,806.67/16,211.48
  6. Step 6: Final answer
    x = 12,088.09

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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.