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Finding the Fourth Proportional to 22,156.60, 33,234.90 and 8,116.60

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Solution

The fourth proportional to 22,156.60, 33,234.90 and 8,116.60 is: 12,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,156.60 : 33,234.90 = 8,116.60 : x
  2. Step 2: Convert to fraction form
    22,156.60/33,234.90 = 8,116.60/x
  3. Step 3: Cross multiply
    22,156.60x = 33,234.90 × 8,116.60
  4. Step 4: Simplify right side
    22,156.60x = 269,754,389.34
  5. Step 5: Solve for x
    x = 269,754,389.34/22,156.60
  6. Step 6: Final answer
    x = 12,174.90

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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.