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Finding the Fourth Proportional to 10,625,245.71, 14,661,708.51 and 5,978,949.80

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Solution

The fourth proportional to 10,625,245.71, 14,661,708.51 and 5,978,949.80 is: 8,250,314.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,625,245.71 : 14,661,708.51 = 5,978,949.80 : x
  2. Step 2: Convert to fraction form
    10,625,245.71/14,661,708.51 = 5,978,949.80/x
  3. Step 3: Cross multiply
    10,625,245.71x = 14,661,708.51 × 5,978,949.80
  4. Step 4: Simplify right side
    10,625,245.71x = 87,661,619,112,635.31
  5. Step 5: Solve for x
    x = 87,661,619,112,635.31/10,625,245.71
  6. Step 6: Final answer
    x = 8,250,314.54

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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.