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Finding the Fourth Proportional to 3,786,557.07, 5,681,902.28 and 2,192,234.07

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Solution

The fourth proportional to 3,786,557.07, 5,681,902.28 and 2,192,234.07 is: 3,289,547.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786,557.07 : 5,681,902.28 = 2,192,234.07 : x
  2. Step 2: Convert to fraction form
    3,786,557.07/5,681,902.28 = 2,192,234.07/x
  3. Step 3: Cross multiply
    3,786,557.07x = 5,681,902.28 × 2,192,234.07
  4. Step 4: Simplify right side
    3,786,557.07x = 12,456,059,749,665.51
  5. Step 5: Solve for x
    x = 12,456,059,749,665.51/3,786,557.07
  6. Step 6: Final answer
    x = 3,289,547.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.