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Finding the Fourth Proportional to 43,992.68, 65,975.12 and 14,403.72

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Solution

The fourth proportional to 43,992.68, 65,975.12 and 14,403.72 is: 21,601.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,992.68 : 65,975.12 = 14,403.72 : x
  2. Step 2: Convert to fraction form
    43,992.68/65,975.12 = 14,403.72/x
  3. Step 3: Cross multiply
    43,992.68x = 65,975.12 × 14,403.72
  4. Step 4: Simplify right side
    43,992.68x = 950,287,155.45
  5. Step 5: Solve for x
    x = 950,287,155.45/43,992.68
  6. Step 6: Final answer
    x = 21,601.03

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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.