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Finding the Fourth Proportional to 68,960.90, 103,441.37 and 22,213.77

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Solution

The fourth proportional to 68,960.90, 103,441.37 and 22,213.77 is: 33,320.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,960.90 : 103,441.37 = 22,213.77 : x
  2. Step 2: Convert to fraction form
    68,960.90/103,441.37 = 22,213.77/x
  3. Step 3: Cross multiply
    68,960.90x = 103,441.37 × 22,213.77
  4. Step 4: Simplify right side
    68,960.90x = 2,297,822,690.60
  5. Step 5: Solve for x
    x = 2,297,822,690.60/68,960.90
  6. Step 6: Final answer
    x = 33,320.66

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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.