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Finding the Fourth Proportional to 43,967.70, 65,944.62 and 12,380.13

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Solution

The fourth proportional to 43,967.70, 65,944.62 and 12,380.13 is: 18,568.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,967.70 : 65,944.62 = 12,380.13 : x
  2. Step 2: Convert to fraction form
    43,967.70/65,944.62 = 12,380.13/x
  3. Step 3: Cross multiply
    43,967.70x = 65,944.62 × 12,380.13
  4. Step 4: Simplify right side
    43,967.70x = 816,402,968.40
  5. Step 5: Solve for x
    x = 816,402,968.40/43,967.70
  6. Step 6: Final answer
    x = 18,568.24

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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.