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Finding the Fourth Proportional to 43,641.41, 65,450.30 and 12,043.88

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Solution

The fourth proportional to 43,641.41, 65,450.30 and 12,043.88 is: 18,062.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,641.41 : 65,450.30 = 12,043.88 : x
  2. Step 2: Convert to fraction form
    43,641.41/65,450.30 = 12,043.88/x
  3. Step 3: Cross multiply
    43,641.41x = 65,450.30 × 12,043.88
  4. Step 4: Simplify right side
    43,641.41x = 788,275,426.71
  5. Step 5: Solve for x
    x = 788,275,426.71/43,641.41
  6. Step 6: Final answer
    x = 18,062.55

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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.