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Finding the Fourth Proportional to 37,391.88, 51,600.96 and 20,396.50

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Solution

The fourth proportional to 37,391.88, 51,600.96 and 20,396.50 is: 28,147.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,391.88 : 51,600.96 = 20,396.50 : x
  2. Step 2: Convert to fraction form
    37,391.88/51,600.96 = 20,396.50/x
  3. Step 3: Cross multiply
    37,391.88x = 51,600.96 × 20,396.50
  4. Step 4: Simplify right side
    37,391.88x = 1,052,478,851.64
  5. Step 5: Solve for x
    x = 1,052,478,851.64/37,391.88
  6. Step 6: Final answer
    x = 28,147.25

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1.5x scale

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.