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Finding the Fourth Proportional to 8,801,611.80, 13,202,417.70 and 8,482,747.20

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Solution

The fourth proportional to 8,801,611.80, 13,202,417.70 and 8,482,747.20 is: 12,724,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,801,611.80 : 13,202,417.70 = 8,482,747.20 : x
  2. Step 2: Convert to fraction form
    8,801,611.80/13,202,417.70 = 8,482,747.20/x
  3. Step 3: Cross multiply
    8,801,611.80x = 13,202,417.70 × 8,482,747.20
  4. Step 4: Simplify right side
    8,801,611.80x = 111,992,771,777,905.42
  5. Step 5: Solve for x
    x = 111,992,771,777,905.42/8,801,611.80
  6. Step 6: Final answer
    x = 12,724,120.80

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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.