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Finding the Fourth Proportional to 7,092,558.86, 9,788,334.23 and 3,995,690.31

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Solution

The fourth proportional to 7,092,558.86, 9,788,334.23 and 3,995,690.31 is: 5,514,392.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,092,558.86 : 9,788,334.23 = 3,995,690.31 : x
  2. Step 2: Convert to fraction form
    7,092,558.86/9,788,334.23 = 3,995,690.31/x
  3. Step 3: Cross multiply
    7,092,558.86x = 9,788,334.23 × 3,995,690.31
  4. Step 4: Simplify right side
    7,092,558.86x = 39,111,152,243,841.54
  5. Step 5: Solve for x
    x = 39,111,152,243,841.54/7,092,558.86
  6. Step 6: Final answer
    x = 5,514,392.34

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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.