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Finding the Fourth Proportional to 54,692.30, 82,014.15 and 21,401.30

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Solution

The fourth proportional to 54,692.30, 82,014.15 and 21,401.30 is: 32,092.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,692.30 : 82,014.15 = 21,401.30 : x
  2. Step 2: Convert to fraction form
    54,692.30/82,014.15 = 21,401.30/x
  3. Step 3: Cross multiply
    54,692.30x = 82,014.15 × 21,401.30
  4. Step 4: Simplify right side
    54,692.30x = 1,755,209,428.40
  5. Step 5: Solve for x
    x = 1,755,209,428.40/54,692.30
  6. Step 6: Final answer
    x = 32,092.44

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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.