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Finding the Fourth Proportional to 43,995.81, 65,993.73 and 10,715.61

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Solution

The fourth proportional to 43,995.81, 65,993.73 and 10,715.61 is: 16,073.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,995.81 : 65,993.73 = 10,715.61 : x
  2. Step 2: Convert to fraction form
    43,995.81/65,993.73 = 10,715.61/x
  3. Step 3: Cross multiply
    43,995.81x = 65,993.73 × 10,715.61
  4. Step 4: Simplify right side
    43,995.81x = 707,163,073.13
  5. Step 5: Solve for x
    x = 707,163,073.13/43,995.81
  6. Step 6: Final answer
    x = 16,073.42

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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.