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Finding the Fourth Proportional to 9,660,978.60, 14,491,007.10 and 3,270,604.20

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Solution

The fourth proportional to 9,660,978.60, 14,491,007.10 and 3,270,604.20 is: 4,905,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660,978.60 : 14,491,007.10 = 3,270,604.20 : x
  2. Step 2: Convert to fraction form
    9,660,978.60/14,491,007.10 = 3,270,604.20/x
  3. Step 3: Cross multiply
    9,660,978.60x = 14,491,007.10 × 3,270,604.20
  4. Step 4: Simplify right side
    9,660,978.60x = 47,394,348,683,489.82
  5. Step 5: Solve for x
    x = 47,394,348,683,489.82/9,660,978.60
  6. Step 6: Final answer
    x = 4,905,750.30

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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.