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Finding the Fourth Proportional to 5,777,385.51, 7,972,694.64 and 3,199,010.93

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Solution

The fourth proportional to 5,777,385.51, 7,972,694.64 and 3,199,010.93 is: 4,414,581.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777,385.51 : 7,972,694.64 = 3,199,010.93 : x
  2. Step 2: Convert to fraction form
    5,777,385.51/7,972,694.64 = 3,199,010.93/x
  3. Step 3: Cross multiply
    5,777,385.51x = 7,972,694.64 × 3,199,010.93
  4. Step 4: Simplify right side
    5,777,385.51x = 25,504,737,284,946.55
  5. Step 5: Solve for x
    x = 25,504,737,284,946.55/5,777,385.51
  6. Step 6: Final answer
    x = 4,414,581.17

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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.