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Finding the Fourth Proportional to 37,240.88, 51,392.76 and 20,474

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Solution

The fourth proportional to 37,240.88, 51,392.76 and 20,474 is: 28,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,240.88 : 51,392.76 = 20,474 : x
  2. Step 2: Convert to fraction form
    37,240.88/51,392.76 = 20,474/x
  3. Step 3: Cross multiply
    37,240.88x = 51,392.76 × 20,474
  4. Step 4: Simplify right side
    37,240.88x = 1,052,215,368.24
  5. Step 5: Solve for x
    x = 1,052,215,368.24/37,240.88
  6. Step 6: Final answer
    x = 28,254.31

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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.