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Finding the Fourth Proportional to 7,136,709.69, 9,848,670.19 and 3,873,525.61

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Solution

The fourth proportional to 7,136,709.69, 9,848,670.19 and 3,873,525.61 is: 5,345,471.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136,709.69 : 9,848,670.19 = 3,873,525.61 : x
  2. Step 2: Convert to fraction form
    7,136,709.69/9,848,670.19 = 3,873,525.61/x
  3. Step 3: Cross multiply
    7,136,709.69x = 9,848,670.19 × 3,873,525.61
  4. Step 4: Simplify right side
    7,136,709.69x = 38,149,076,205,408.56
  5. Step 5: Solve for x
    x = 38,149,076,205,408.56/7,136,709.69
  6. Step 6: Final answer
    x = 5,345,471.21

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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.