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Finding the Fourth Proportional to 7,092,991.69, 9,788,339.46 and 4,037,205.94

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Solution

The fourth proportional to 7,092,991.69, 9,788,339.46 and 4,037,205.94 is: 5,571,350.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,092,991.69 : 9,788,339.46 = 4,037,205.94 : x
  2. Step 2: Convert to fraction form
    7,092,991.69/9,788,339.46 = 4,037,205.94/x
  3. Step 3: Cross multiply
    7,092,991.69x = 9,788,339.46 × 4,037,205.94
  4. Step 4: Simplify right side
    7,092,991.69x = 39,517,542,201,317.06
  5. Step 5: Solve for x
    x = 39,517,542,201,317.06/7,092,991.69
  6. Step 6: Final answer
    x = 5,571,350.42

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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.