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Finding the Fourth Proportional to 3,957,900.07, 5,461,912.62 and 2,147,064.07

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Solution

The fourth proportional to 3,957,900.07, 5,461,912.62 and 2,147,064.07 is: 2,962,954.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957,900.07 : 5,461,912.62 = 2,147,064.07 : x
  2. Step 2: Convert to fraction form
    3,957,900.07/5,461,912.62 = 2,147,064.07/x
  3. Step 3: Cross multiply
    3,957,900.07x = 5,461,912.62 × 2,147,064.07
  4. Step 4: Simplify right side
    3,957,900.07x = 11,727,076,339,881.56
  5. Step 5: Solve for x
    x = 11,727,076,339,881.56/3,957,900.07
  6. Step 6: Final answer
    x = 2,962,954.13

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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.