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Finding the Fourth Proportional to 29,486.40, 40,692.95 and 22,205.46

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Solution

The fourth proportional to 29,486.40, 40,692.95 and 22,205.46 is: 30,644.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,486.40 : 40,692.95 = 22,205.46 : x
  2. Step 2: Convert to fraction form
    29,486.40/40,692.95 = 22,205.46/x
  3. Step 3: Cross multiply
    29,486.40x = 40,692.95 × 22,205.46
  4. Step 4: Simplify right side
    29,486.40x = 903,605,621.45
  5. Step 5: Solve for x
    x = 903,605,621.45/29,486.40
  6. Step 6: Final answer
    x = 30,644.82

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