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Finding the Fourth Proportional to 8,446,995.72, 12,670,986.60 and 3,259,632.60

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Solution

The fourth proportional to 8,446,995.72, 12,670,986.60 and 3,259,632.60 is: 4,889,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,446,995.72 : 12,670,986.60 = 3,259,632.60 : x
  2. Step 2: Convert to fraction form
    8,446,995.72/12,670,986.60 = 3,259,632.60/x
  3. Step 3: Cross multiply
    8,446,995.72x = 12,670,986.60 × 3,259,632.60
  4. Step 4: Simplify right side
    8,446,995.72x = 41,302,760,995,523.16
  5. Step 5: Solve for x
    x = 41,302,760,995,523.16/8,446,995.72
  6. Step 6: Final answer
    x = 4,889,639.15

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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.