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Finding the Fourth Proportional to 43,999.88, 65,993.96 and 12,412.48

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Solution

The fourth proportional to 43,999.88, 65,993.96 and 12,412.48 is: 18,617.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,999.88 : 65,993.96 = 12,412.48 : x
  2. Step 2: Convert to fraction form
    43,999.88/65,993.96 = 12,412.48/x
  3. Step 3: Cross multiply
    43,999.88x = 65,993.96 × 12,412.48
  4. Step 4: Simplify right side
    43,999.88x = 819,148,708.62
  5. Step 5: Solve for x
    x = 819,148,708.62/43,999.88
  6. Step 6: Final answer
    x = 18,617.07

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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.