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Finding the Fourth Proportional to 5,829,692.44, 8,744,290.80 and 1,991,858.98

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Solution

The fourth proportional to 5,829,692.44, 8,744,290.80 and 1,991,858.98 is: 2,987,703.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,829,692.44 : 8,744,290.80 = 1,991,858.98 : x
  2. Step 2: Convert to fraction form
    5,829,692.44/8,744,290.80 = 1,991,858.98/x
  3. Step 3: Cross multiply
    5,829,692.44x = 8,744,290.80 × 1,991,858.98
  4. Step 4: Simplify right side
    5,829,692.44x = 17,417,394,153,711.38
  5. Step 5: Solve for x
    x = 17,417,394,153,711.38/5,829,692.44
  6. Step 6: Final answer
    x = 2,987,703.78

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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.