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Finding the Fourth Proportional to 68,961.72, 103,458.84 and 22,212.84

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Solution

The fourth proportional to 68,961.72, 103,458.84 and 22,212.84 is: 33,324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,961.72 : 103,458.84 = 22,212.84 : x
  2. Step 2: Convert to fraction form
    68,961.72/103,458.84 = 22,212.84/x
  3. Step 3: Cross multiply
    68,961.72x = 103,458.84 × 22,212.84
  4. Step 4: Simplify right side
    68,961.72x = 2,298,114,659.51
  5. Step 5: Solve for x
    x = 2,298,114,659.51/68,961.72
  6. Step 6: Final answer
    x = 33,324.50

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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.