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Finding the Fourth Proportional to 21,796.85, 32,692.16 and 7,003.87

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Solution

The fourth proportional to 21,796.85, 32,692.16 and 7,003.87 is: 10,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,796.85 : 32,692.16 = 7,003.87 : x
  2. Step 2: Convert to fraction form
    21,796.85/32,692.16 = 7,003.87/x
  3. Step 3: Cross multiply
    21,796.85x = 32,692.16 × 7,003.87
  4. Step 4: Simplify right side
    21,796.85x = 228,971,574.44
  5. Step 5: Solve for x
    x = 228,971,574.44/21,796.85
  6. Step 6: Final answer
    x = 10,504.80

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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.