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Finding the Fourth Proportional to 8,473,692.80, 12,710,539.20 and 8,473,692.80

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Solution

The fourth proportional to 8,473,692.80, 12,710,539.20 and 8,473,692.80 is: 12,710,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473,692.80 : 12,710,539.20 = 8,473,692.80 : x
  2. Step 2: Convert to fraction form
    8,473,692.80/12,710,539.20 = 8,473,692.80/x
  3. Step 3: Cross multiply
    8,473,692.80x = 12,710,539.20 × 8,473,692.80
  4. Step 4: Simplify right side
    8,473,692.80x = 107,705,204,503,157.77
  5. Step 5: Solve for x
    x = 107,705,204,503,157.77/8,473,692.80
  6. Step 6: Final answer
    x = 12,710,539.20

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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.