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Finding the Fourth Proportional to 37,512.98, 51,765.98 and 20,513.92

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Solution

The fourth proportional to 37,512.98, 51,765.98 and 20,513.92 is: 28,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,512.98 : 51,765.98 = 20,513.92 : x
  2. Step 2: Convert to fraction form
    37,512.98/51,765.98 = 20,513.92/x
  3. Step 3: Cross multiply
    37,512.98x = 51,765.98 × 20,513.92
  4. Step 4: Simplify right side
    37,512.98x = 1,061,923,172.44
  5. Step 5: Solve for x
    x = 1,061,923,172.44/37,512.98
  6. Step 6: Final answer
    x = 28,308.15

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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.