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Finding the Fourth Proportional to 9,659,890.80, 14,491,585.80 and 4,855,489.20

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Solution

The fourth proportional to 9,659,890.80, 14,491,585.80 and 4,855,489.20 is: 7,284,113.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,659,890.80 : 14,491,585.80 = 4,855,489.20 : x
  2. Step 2: Convert to fraction form
    9,659,890.80/14,491,585.80 = 4,855,489.20/x
  3. Step 3: Cross multiply
    9,659,890.80x = 14,491,585.80 × 4,855,489.20
  4. Step 4: Simplify right side
    9,659,890.80x = 70,363,738,342,773.37
  5. Step 5: Solve for x
    x = 70,363,738,342,773.37/9,659,890.80
  6. Step 6: Final answer
    x = 7,284,113.23

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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.