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Finding the Fourth Proportional to 43,605.85, 65,410.05 and 12,016.39

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Solution

The fourth proportional to 43,605.85, 65,410.05 and 12,016.39 is: 18,024.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,605.85 : 65,410.05 = 12,016.39 : x
  2. Step 2: Convert to fraction form
    43,605.85/65,410.05 = 12,016.39/x
  3. Step 3: Cross multiply
    43,605.85x = 65,410.05 × 12,016.39
  4. Step 4: Simplify right side
    43,605.85x = 785,992,343.67
  5. Step 5: Solve for x
    x = 785,992,343.67/43,605.85
  6. Step 6: Final answer
    x = 18,024.93

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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.