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Finding the Fourth Proportional to 31,795,446.40, 47,693,169.60 and 26,693,612.80

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Solution

The fourth proportional to 31,795,446.40, 47,693,169.60 and 26,693,612.80 is: 40,040,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,795,446.40 : 47,693,169.60 = 26,693,612.80 : x
  2. Step 2: Convert to fraction form
    31,795,446.40/47,693,169.60 = 26,693,612.80/x
  3. Step 3: Cross multiply
    31,795,446.40x = 47,693,169.60 × 26,693,612.80
  4. Step 4: Simplify right side
    31,795,446.40x = 1,273,103,002,507,131
  5. Step 5: Solve for x
    x = 1,273,103,002,507,131/31,795,446.40
  6. Step 6: Final answer
    x = 40,040,419.20

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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.