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Finding the Fourth Proportional to 37,310.94, 51,491.43 and 20,543.94

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Solution

The fourth proportional to 37,310.94, 51,491.43 and 20,543.94 is: 28,351.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,310.94 : 51,491.43 = 20,543.94 : x
  2. Step 2: Convert to fraction form
    37,310.94/51,491.43 = 20,543.94/x
  3. Step 3: Cross multiply
    37,310.94x = 51,491.43 × 20,543.94
  4. Step 4: Simplify right side
    37,310.94x = 1,057,836,848.43
  5. Step 5: Solve for x
    x = 1,057,836,848.43/37,310.94
  6. Step 6: Final answer
    x = 28,351.92

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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.