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Finding the Fourth Proportional to 43,692.75, 65,539.17 and 10,860.75

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Solution

The fourth proportional to 43,692.75, 65,539.17 and 10,860.75 is: 16,291.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,692.75 : 65,539.17 = 10,860.75 : x
  2. Step 2: Convert to fraction form
    43,692.75/65,539.17 = 10,860.75/x
  3. Step 3: Cross multiply
    43,692.75x = 65,539.17 × 10,860.75
  4. Step 4: Simplify right side
    43,692.75x = 711,804,540.58
  5. Step 5: Solve for x
    x = 711,804,540.58/43,692.75
  6. Step 6: Final answer
    x = 16,291.14

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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.