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Finding the Fourth Proportional to 5,678,665.88, 7,836,518.34 and 3,100,346.57

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Solution

The fourth proportional to 5,678,665.88, 7,836,518.34 and 3,100,346.57 is: 4,278,456.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678,665.88 : 7,836,518.34 = 3,100,346.57 : x
  2. Step 2: Convert to fraction form
    5,678,665.88/7,836,518.34 = 3,100,346.57/x
  3. Step 3: Cross multiply
    5,678,665.88x = 7,836,518.34 × 3,100,346.57
  4. Step 4: Simplify right side
    5,678,665.88x = 24,295,922,716,978.50
  5. Step 5: Solve for x
    x = 24,295,922,716,978.50/5,678,665.88
  6. Step 6: Final answer
    x = 4,278,456.11

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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.