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Finding the Fourth Proportional to 8,489,329.20, 12,706,000.20 and 5,969,905.20

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Solution

The fourth proportional to 8,489,329.20, 12,706,000.20 and 5,969,905.20 is: 8,935,172.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489,329.20 : 12,706,000.20 = 5,969,905.20 : x
  2. Step 2: Convert to fraction form
    8,489,329.20/12,706,000.20 = 5,969,905.20/x
  3. Step 3: Cross multiply
    8,489,329.20x = 12,706,000.20 × 5,969,905.20
  4. Step 4: Simplify right side
    8,489,329.20x = 75,853,616,665,181.03
  5. Step 5: Solve for x
    x = 75,853,616,665,181.03/8,489,329.20
  6. Step 6: Final answer
    x = 8,935,172.01

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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.