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Finding the Fourth Proportional to 12,699,758.79, 17,493,621.12 and 10,245,497.79

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Solution

The fourth proportional to 12,699,758.79, 17,493,621.12 and 10,245,497.79 is: 14,112,933.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699,758.79 : 17,493,621.12 = 10,245,497.79 : x
  2. Step 2: Convert to fraction form
    12,699,758.79/17,493,621.12 = 10,245,497.79/x
  3. Step 3: Cross multiply
    12,699,758.79x = 17,493,621.12 × 10,245,497.79
  4. Step 4: Simplify right side
    12,699,758.79x = 179,230,856,524,057.31
  5. Step 5: Solve for x
    x = 179,230,856,524,057.31/12,699,758.79
  6. Step 6: Final answer
    x = 14,112,933.91

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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.