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Finding the Fourth Proportional to 43,358.48, 65,037.72 and 12,193.73

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Solution

The fourth proportional to 43,358.48, 65,037.72 and 12,193.73 is: 18,290.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,358.48 : 65,037.72 = 12,193.73 : x
  2. Step 2: Convert to fraction form
    43,358.48/65,037.72 = 12,193.73/x
  3. Step 3: Cross multiply
    43,358.48x = 65,037.72 × 12,193.73
  4. Step 4: Simplify right side
    43,358.48x = 793,052,072.31
  5. Step 5: Solve for x
    x = 793,052,072.31/43,358.48
  6. Step 6: Final answer
    x = 18,290.59

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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.