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Finding the Fourth Proportional to 43,636.49, 65,453.42 and 12,048.48

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Solution

The fourth proportional to 43,636.49, 65,453.42 and 12,048.48 is: 18,072.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,636.49 : 65,453.42 = 12,048.48 : x
  2. Step 2: Convert to fraction form
    43,636.49/65,453.42 = 12,048.48/x
  3. Step 3: Cross multiply
    43,636.49x = 65,453.42 × 12,048.48
  4. Step 4: Simplify right side
    43,636.49x = 788,614,251.92
  5. Step 5: Solve for x
    x = 788,614,251.92/43,636.49
  6. Step 6: Final answer
    x = 18,072.36

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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.