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Finding the Fourth Proportional to 37,493.20, 51,740.81 and 20,497.20

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Solution

The fourth proportional to 37,493.20, 51,740.81 and 20,497.20 is: 28,286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,493.20 : 51,740.81 = 20,497.20 : x
  2. Step 2: Convert to fraction form
    37,493.20/51,740.81 = 20,497.20/x
  3. Step 3: Cross multiply
    37,493.20x = 51,740.81 × 20,497.20
  4. Step 4: Simplify right side
    37,493.20x = 1,060,541,730.73
  5. Step 5: Solve for x
    x = 1,060,541,730.73/37,493.20
  6. Step 6: Final answer
    x = 28,286.24

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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.