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Finding the Fourth Proportional to 66,788.96, 100,202.24 and 33,468.80

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Solution

The fourth proportional to 66,788.96, 100,202.24 and 33,468.80 is: 50,212.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,788.96 : 100,202.24 = 33,468.80 : x
  2. Step 2: Convert to fraction form
    66,788.96/100,202.24 = 33,468.80/x
  3. Step 3: Cross multiply
    66,788.96x = 100,202.24 × 33,468.80
  4. Step 4: Simplify right side
    66,788.96x = 3,353,648,730.11
  5. Step 5: Solve for x
    x = 3,353,648,730.11/66,788.96
  6. Step 6: Final answer
    x = 50,212.62

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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.