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Finding the Fourth Proportional to 61,692.83, 85,136.13 and 33,398.51

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Solution

The fourth proportional to 61,692.83, 85,136.13 and 33,398.51 is: 46,089.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,692.83 : 85,136.13 = 33,398.51 : x
  2. Step 2: Convert to fraction form
    61,692.83/85,136.13 = 33,398.51/x
  3. Step 3: Cross multiply
    61,692.83x = 85,136.13 × 33,398.51
  4. Step 4: Simplify right side
    61,692.83x = 2,843,419,463.49
  5. Step 5: Solve for x
    x = 2,843,419,463.49/61,692.83
  6. Step 6: Final answer
    x = 46,089.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.