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Finding the Fourth Proportional to 43,993.05, 65,989.71 and 10,713.12

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Solution

The fourth proportional to 43,993.05, 65,989.71 and 10,713.12 is: 16,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,993.05 : 65,989.71 = 10,713.12 : x
  2. Step 2: Convert to fraction form
    43,993.05/65,989.71 = 10,713.12/x
  3. Step 3: Cross multiply
    43,993.05x = 65,989.71 × 10,713.12
  4. Step 4: Simplify right side
    43,993.05x = 706,955,682.00
  5. Step 5: Solve for x
    x = 706,955,682.00/43,993.05
  6. Step 6: Final answer
    x = 16,069.71

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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.