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Finding the Fourth Proportional to 43,279.01, 64,912.01 and 13,692.99

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Solution

The fourth proportional to 43,279.01, 64,912.01 and 13,692.99 is: 20,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,279.01 : 64,912.01 = 13,692.99 : x
  2. Step 2: Convert to fraction form
    43,279.01/64,912.01 = 13,692.99/x
  3. Step 3: Cross multiply
    43,279.01x = 64,912.01 × 13,692.99
  4. Step 4: Simplify right side
    43,279.01x = 888,839,678.76
  5. Step 5: Solve for x
    x = 888,839,678.76/43,279.01
  6. Step 6: Final answer
    x = 20,537.43

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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.