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Finding the Fourth Proportional to 43,609.20, 65,413.80 and 14,030.03

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Solution

The fourth proportional to 43,609.20, 65,413.80 and 14,030.03 is: 21,045.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,609.20 : 65,413.80 = 14,030.03 : x
  2. Step 2: Convert to fraction form
    43,609.20/65,413.80 = 14,030.03/x
  3. Step 3: Cross multiply
    43,609.20x = 65,413.80 × 14,030.03
  4. Step 4: Simplify right side
    43,609.20x = 917,757,249.35
  5. Step 5: Solve for x
    x = 917,757,249.35/43,609.20
  6. Step 6: Final answer
    x = 21,045.04

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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.