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Finding the Fourth Proportional to 7,136,843.98, 9,848,820.08 and 3,873,658.54

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Solution

The fourth proportional to 7,136,843.98, 9,848,820.08 and 3,873,658.54 is: 5,345,635.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136,843.98 : 9,848,820.08 = 3,873,658.54 : x
  2. Step 2: Convert to fraction form
    7,136,843.98/9,848,820.08 = 3,873,658.54/x
  3. Step 3: Cross multiply
    7,136,843.98x = 9,848,820.08 × 3,873,658.54
  4. Step 4: Simplify right side
    7,136,843.98x = 38,150,966,011,815.48
  5. Step 5: Solve for x
    x = 38,150,966,011,815.48/7,136,843.98
  6. Step 6: Final answer
    x = 5,345,635.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.