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Finding the Fourth Proportional to 5,328,766.39, 7,353,692.42 and 2,881,371.57

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Solution

The fourth proportional to 5,328,766.39, 7,353,692.42 and 2,881,371.57 is: 3,976,289.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328,766.39 : 7,353,692.42 = 2,881,371.57 : x
  2. Step 2: Convert to fraction form
    5,328,766.39/7,353,692.42 = 2,881,371.57/x
  3. Step 3: Cross multiply
    5,328,766.39x = 7,353,692.42 × 2,881,371.57
  4. Step 4: Simplify right side
    5,328,766.39x = 21,188,720,222,337.18
  5. Step 5: Solve for x
    x = 21,188,720,222,337.18/5,328,766.39
  6. Step 6: Final answer
    x = 3,976,289.95

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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.