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Finding the Fourth Proportional to 5,777,389.92, 7,972,700.73 and 3,199,015.32

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Solution

The fourth proportional to 5,777,389.92, 7,972,700.73 and 3,199,015.32 is: 4,414,587.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777,389.92 : 7,972,700.73 = 3,199,015.32 : x
  2. Step 2: Convert to fraction form
    5,777,389.92/7,972,700.73 = 3,199,015.32/x
  3. Step 3: Cross multiply
    5,777,389.92x = 7,972,700.73 × 3,199,015.32
  4. Step 4: Simplify right side
    5,777,389.92x = 25,504,791,777,045.18
  5. Step 5: Solve for x
    x = 25,504,791,777,045.18/5,777,389.92
  6. Step 6: Final answer
    x = 4,414,587.23

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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.