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Finding the Fourth Proportional to 65,212.56, 89,996.72 and 36,530.55

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Solution

The fourth proportional to 65,212.56, 89,996.72 and 36,530.55 is: 50,414.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,212.56 : 89,996.72 = 36,530.55 : x
  2. Step 2: Convert to fraction form
    65,212.56/89,996.72 = 36,530.55/x
  3. Step 3: Cross multiply
    65,212.56x = 89,996.72 × 36,530.55
  4. Step 4: Simplify right side
    65,212.56x = 3,287,629,497.14
  5. Step 5: Solve for x
    x = 3,287,629,497.14/65,212.56
  6. Step 6: Final answer
    x = 50,414.05

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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.