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Finding the Fourth Proportional to 16,692.43, 25,044.99 and 7,812.82

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Solution

The fourth proportional to 16,692.43, 25,044.99 and 7,812.82 is: 11,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,692.43 : 25,044.99 = 7,812.82 : x
  2. Step 2: Convert to fraction form
    16,692.43/25,044.99 = 7,812.82/x
  3. Step 3: Cross multiply
    16,692.43x = 25,044.99 × 7,812.82
  4. Step 4: Simplify right side
    16,692.43x = 195,671,998.77
  5. Step 5: Solve for x
    x = 195,671,998.77/16,692.43
  6. Step 6: Final answer
    x = 11,722.20

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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.