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Finding the Fourth Proportional to 7,136,779.54, 9,848,730.82 and 3,873,594.09

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Solution

The fourth proportional to 7,136,779.54, 9,848,730.82 and 3,873,594.09 is: 5,345,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136,779.54 : 9,848,730.82 = 3,873,594.09 : x
  2. Step 2: Convert to fraction form
    7,136,779.54/9,848,730.82 = 3,873,594.09/x
  3. Step 3: Cross multiply
    7,136,779.54x = 9,848,730.82 × 3,873,594.09
  4. Step 4: Simplify right side
    7,136,779.54x = 38,149,985,498,352.85
  5. Step 5: Solve for x
    x = 38,149,985,498,352.85/7,136,779.54
  6. Step 6: Final answer
    x = 5,345,546.30

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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.