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Finding the Fourth Proportional to 43,662.92, 65,439.57 and 18,673.58

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Solution

The fourth proportional to 43,662.92, 65,439.57 and 18,673.58 is: 27,986.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,662.92 : 65,439.57 = 18,673.58 : x
  2. Step 2: Convert to fraction form
    43,662.92/65,439.57 = 18,673.58/x
  3. Step 3: Cross multiply
    43,662.92x = 65,439.57 × 18,673.58
  4. Step 4: Simplify right side
    43,662.92x = 1,221,990,718.36
  5. Step 5: Solve for x
    x = 1,221,990,718.36/43,662.92
  6. Step 6: Final answer
    x = 27,986.92

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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.