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Finding the Fourth Proportional to 43,489.92, 65,219.52 and 18,852.48

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Solution

The fourth proportional to 43,489.92, 65,219.52 and 18,852.48 is: 28,272.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,489.92 : 65,219.52 = 18,852.48 : x
  2. Step 2: Convert to fraction form
    43,489.92/65,219.52 = 18,852.48/x
  3. Step 3: Cross multiply
    43,489.92x = 65,219.52 × 18,852.48
  4. Step 4: Simplify right side
    43,489.92x = 1,229,549,696.41
  5. Step 5: Solve for x
    x = 1,229,549,696.41/43,489.92
  6. Step 6: Final answer
    x = 28,272.06

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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.