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Finding the Fourth Proportional to 22,356.70, 30,850.40 and 12,284.62

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Solution

The fourth proportional to 22,356.70, 30,850.40 and 12,284.62 is: 16,951.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,356.70 : 30,850.40 = 12,284.62 : x
  2. Step 2: Convert to fraction form
    22,356.70/30,850.40 = 12,284.62/x
  3. Step 3: Cross multiply
    22,356.70x = 30,850.40 × 12,284.62
  4. Step 4: Simplify right side
    22,356.70x = 378,985,440.85
  5. Step 5: Solve for x
    x = 378,985,440.85/22,356.70
  6. Step 6: Final answer
    x = 16,951.76

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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.