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Finding the Fourth Proportional to 7,136,779.86, 9,848,762.82 and 3,873,593.64

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Solution

The fourth proportional to 7,136,779.86, 9,848,762.82 and 3,873,593.64 is: 5,345,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136,779.86 : 9,848,762.82 = 3,873,593.64 : x
  2. Step 2: Convert to fraction form
    7,136,779.86/9,848,762.82 = 3,873,593.64/x
  3. Step 3: Cross multiply
    7,136,779.86x = 9,848,762.82 × 3,873,593.64
  4. Step 4: Simplify right side
    7,136,779.86x = 38,150,105,021,420.47
  5. Step 5: Solve for x
    x = 38,150,105,021,420.47/7,136,779.86
  6. Step 6: Final answer
    x = 5,345,562.81

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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.