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Finding the Fourth Proportional to 10,628,239.90, 15,944,889.56 and 3,439,773.80

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Solution

The fourth proportional to 10,628,239.90, 15,944,889.56 and 3,439,773.80 is: 5,160,479.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628,239.90 : 15,944,889.56 = 3,439,773.80 : x
  2. Step 2: Convert to fraction form
    10,628,239.90/15,944,889.56 = 3,439,773.80/x
  3. Step 3: Cross multiply
    10,628,239.90x = 15,944,889.56 × 3,439,773.80
  4. Step 4: Simplify right side
    10,628,239.90x = 54,846,813,375,044.88
  5. Step 5: Solve for x
    x = 54,846,813,375,044.88/10,628,239.90
  6. Step 6: Final answer
    x = 5,160,479.43

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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.